diff --git a/examples/all-clusters-app/all-clusters-common/src/static-supported-modes-manager.cpp b/examples/all-clusters-app/all-clusters-common/src/static-supported-modes-manager.cpp
index 94345600cf53fd..59bccf11faa481 100644
--- a/examples/all-clusters-app/all-clusters-common/src/static-supported-modes-manager.cpp
+++ b/examples/all-clusters-app/all-clusters-common/src/static-supported-modes-manager.cpp
@@ -1,7 +1,6 @@
 #include <app/util/config.h>
 #include <static-supported-modes-manager.h>
 
-using namespace std;
 using namespace chip;
 using namespace chip::app::Clusters;
 using namespace chip::app::Clusters::ModeSelect;
diff --git a/examples/all-clusters-app/all-clusters-common/src/static-supported-temperature-levels.cpp b/examples/all-clusters-app/all-clusters-common/src/static-supported-temperature-levels.cpp
index 6019006c2a2868..5ed8a0c40f5e89 100644
--- a/examples/all-clusters-app/all-clusters-common/src/static-supported-temperature-levels.cpp
+++ b/examples/all-clusters-app/all-clusters-common/src/static-supported-temperature-levels.cpp
@@ -19,7 +19,6 @@
 #include <app/util/config.h>
 #include <static-supported-temperature-levels.h>
 
-using namespace std;
 using namespace chip;
 using namespace chip::app::Clusters;
 using namespace chip::app::Clusters::TemperatureControl;
diff --git a/examples/chef/common/clusters/audio-output/AudioOutputManager.cpp b/examples/chef/common/clusters/audio-output/AudioOutputManager.cpp
index 06a123a6549679..65df8db9ff0bb2 100644
--- a/examples/chef/common/clusters/audio-output/AudioOutputManager.cpp
+++ b/examples/chef/common/clusters/audio-output/AudioOutputManager.cpp
@@ -20,7 +20,6 @@
 #ifdef MATTER_DM_PLUGIN_AUDIO_OUTPUT_SERVER
 #include "AudioOutputManager.h"
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters::AudioOutput;
 using chip::app::AttributeValueEncoder;
diff --git a/examples/chef/common/clusters/media-input/MediaInputManager.cpp b/examples/chef/common/clusters/media-input/MediaInputManager.cpp
index 53cc22cd65cce8..4d11d9934ae8ab 100644
--- a/examples/chef/common/clusters/media-input/MediaInputManager.cpp
+++ b/examples/chef/common/clusters/media-input/MediaInputManager.cpp
@@ -22,7 +22,6 @@
 #ifdef MATTER_DM_PLUGIN_MEDIA_INPUT_SERVER
 #include "MediaInputManager.h"
 
-using namespace std;
 using namespace chip;
 using namespace chip::app::Clusters::MediaInput;
 using Protocols::InteractionModel::Status;
diff --git a/examples/chef/common/clusters/media-playback/MediaPlaybackManager.cpp b/examples/chef/common/clusters/media-playback/MediaPlaybackManager.cpp
index db3af119c5b286..cf8bcda33cd757 100644
--- a/examples/chef/common/clusters/media-playback/MediaPlaybackManager.cpp
+++ b/examples/chef/common/clusters/media-playback/MediaPlaybackManager.cpp
@@ -22,7 +22,6 @@
 #ifdef MATTER_DM_PLUGIN_MEDIA_PLAYBACK_SERVER
 #include "MediaPlaybackManager.h"
 
-using namespace std;
 using namespace chip;
 using namespace chip::app;
 using namespace chip::app::DataModel;
diff --git a/examples/chef/common/clusters/target-navigator/TargetNavigatorManager.cpp b/examples/chef/common/clusters/target-navigator/TargetNavigatorManager.cpp
index be20f92f53a8fe..1f2dcdedb048e6 100644
--- a/examples/chef/common/clusters/target-navigator/TargetNavigatorManager.cpp
+++ b/examples/chef/common/clusters/target-navigator/TargetNavigatorManager.cpp
@@ -23,7 +23,6 @@
 #include <list>
 #include <string>
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters::TargetNavigator;
 
diff --git a/examples/placeholder/linux/static-supported-modes-manager.cpp b/examples/placeholder/linux/static-supported-modes-manager.cpp
index 94345600cf53fd..59bccf11faa481 100644
--- a/examples/placeholder/linux/static-supported-modes-manager.cpp
+++ b/examples/placeholder/linux/static-supported-modes-manager.cpp
@@ -1,7 +1,6 @@
 #include <app/util/config.h>
 #include <static-supported-modes-manager.h>
 
-using namespace std;
 using namespace chip;
 using namespace chip::app::Clusters;
 using namespace chip::app::Clusters::ModeSelect;
diff --git a/examples/placeholder/linux/static-supported-temperature-levels.cpp b/examples/placeholder/linux/static-supported-temperature-levels.cpp
index de8933fdf649ea..4b65317e8cc58f 100644
--- a/examples/placeholder/linux/static-supported-temperature-levels.cpp
+++ b/examples/placeholder/linux/static-supported-temperature-levels.cpp
@@ -19,7 +19,6 @@
 #include <app/util/config.h>
 #include <static-supported-temperature-levels.h>
 
-using namespace std;
 using namespace chip;
 using namespace chip::app::Clusters;
 using namespace chip::app::Clusters::TemperatureControl;
diff --git a/examples/refrigerator-app/refrigerator-common/src/static-supported-temperature-levels.cpp b/examples/refrigerator-app/refrigerator-common/src/static-supported-temperature-levels.cpp
index 8678e5f3d009d0..a7198c0cf0a3b6 100644
--- a/examples/refrigerator-app/refrigerator-common/src/static-supported-temperature-levels.cpp
+++ b/examples/refrigerator-app/refrigerator-common/src/static-supported-temperature-levels.cpp
@@ -19,7 +19,6 @@
 #include <app/util/config.h>
 #include <static-supported-temperature-levels.h>
 
-using namespace std;
 using namespace chip;
 using namespace chip::app::Clusters;
 using namespace chip::app::Clusters::TemperatureControl;
diff --git a/examples/tv-app/android/include/account-login/AccountLoginManager.cpp b/examples/tv-app/android/include/account-login/AccountLoginManager.cpp
index 2aa0b313b0eda1..48d443eb496ffb 100644
--- a/examples/tv-app/android/include/account-login/AccountLoginManager.cpp
+++ b/examples/tv-app/android/include/account-login/AccountLoginManager.cpp
@@ -23,7 +23,6 @@
 #include <json/json.h>
 #include <lib/core/DataModelTypes.h>
 
-using namespace std;
 using namespace chip::app::Clusters;
 using namespace chip::app::Clusters::AccountLogin;
 using Status = chip::Protocols::InteractionModel::Status;
diff --git a/examples/tv-app/android/include/application-basic/ApplicationBasicManager.cpp b/examples/tv-app/android/include/application-basic/ApplicationBasicManager.cpp
index d94177155f4fde..80e11460bd88e3 100644
--- a/examples/tv-app/android/include/application-basic/ApplicationBasicManager.cpp
+++ b/examples/tv-app/android/include/application-basic/ApplicationBasicManager.cpp
@@ -18,7 +18,6 @@
 
 #include "ApplicationBasicManager.h"
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters::ApplicationBasic;
 
diff --git a/examples/tv-app/android/include/audio-output/AudioOutputManager.cpp b/examples/tv-app/android/include/audio-output/AudioOutputManager.cpp
index 1b8a6a36c84912..77a1e2111b44be 100644
--- a/examples/tv-app/android/include/audio-output/AudioOutputManager.cpp
+++ b/examples/tv-app/android/include/audio-output/AudioOutputManager.cpp
@@ -18,7 +18,6 @@
 
 #include "AudioOutputManager.h"
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters::AudioOutput;
 
diff --git a/examples/tv-app/android/include/content-app-observer/ContentAppObserver.cpp b/examples/tv-app/android/include/content-app-observer/ContentAppObserver.cpp
index 7145ba24305f21..158da869c07b67 100644
--- a/examples/tv-app/android/include/content-app-observer/ContentAppObserver.cpp
+++ b/examples/tv-app/android/include/content-app-observer/ContentAppObserver.cpp
@@ -20,7 +20,6 @@
 #include <app-common/zap-generated/attributes/Accessors.h>
 #include <app/util/config.h>
 
-using namespace std;
 using namespace chip;
 using namespace chip::app::Clusters::ContentAppObserver;
 
diff --git a/examples/tv-app/android/include/content-control/ContentController.cpp b/examples/tv-app/android/include/content-control/ContentController.cpp
index edf2550c489d62..4883d4f78086e8 100644
--- a/examples/tv-app/android/include/content-control/ContentController.cpp
+++ b/examples/tv-app/android/include/content-control/ContentController.cpp
@@ -19,7 +19,6 @@
 #include <app-common/zap-generated/attributes/Accessors.h>
 #include <app/util/config.h>
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters;
 using namespace chip::app::DataModel;
diff --git a/examples/tv-app/android/include/content-launcher/AppContentLauncherManager.cpp b/examples/tv-app/android/include/content-launcher/AppContentLauncherManager.cpp
index 671daab4b239c4..adc156eeb19b84 100644
--- a/examples/tv-app/android/include/content-launcher/AppContentLauncherManager.cpp
+++ b/examples/tv-app/android/include/content-launcher/AppContentLauncherManager.cpp
@@ -24,7 +24,6 @@
 #include <list>
 #include <string>
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters;
 using namespace chip::app::DataModel;
diff --git a/examples/tv-app/android/include/media-playback/AppMediaPlaybackManager.cpp b/examples/tv-app/android/include/media-playback/AppMediaPlaybackManager.cpp
index 9f5c2e5d6691ce..9e07e348e0fe3b 100644
--- a/examples/tv-app/android/include/media-playback/AppMediaPlaybackManager.cpp
+++ b/examples/tv-app/android/include/media-playback/AppMediaPlaybackManager.cpp
@@ -28,7 +28,6 @@
 
 #include <string>
 
-using namespace std;
 using namespace chip;
 using namespace chip::app;
 using namespace chip::app::DataModel;
diff --git a/examples/tv-app/android/include/messages/MessagesManager.cpp b/examples/tv-app/android/include/messages/MessagesManager.cpp
index 00848c67312751..a4fdaa53291394 100644
--- a/examples/tv-app/android/include/messages/MessagesManager.cpp
+++ b/examples/tv-app/android/include/messages/MessagesManager.cpp
@@ -17,7 +17,6 @@
 
 #include "MessagesManager.h"
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters::Messages;
 
diff --git a/examples/tv-app/android/include/target-navigator/TargetNavigatorManager.cpp b/examples/tv-app/android/include/target-navigator/TargetNavigatorManager.cpp
index fe7884227880df..31ae5daedb215d 100644
--- a/examples/tv-app/android/include/target-navigator/TargetNavigatorManager.cpp
+++ b/examples/tv-app/android/include/target-navigator/TargetNavigatorManager.cpp
@@ -23,7 +23,6 @@
 #include <list>
 #include <string>
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters::TargetNavigator;
 using ContentAppAttributeDelegate = chip::AppPlatform::ContentAppAttributeDelegate;
diff --git a/examples/tv-app/android/java/ContentLauncherManager.cpp b/examples/tv-app/android/java/ContentLauncherManager.cpp
index 9aacc2d6e56b22..b1c3a8cac64a4b 100644
--- a/examples/tv-app/android/java/ContentLauncherManager.cpp
+++ b/examples/tv-app/android/java/ContentLauncherManager.cpp
@@ -27,7 +27,6 @@
 #include <lib/support/JniReferences.h>
 #include <lib/support/JniTypeWrappers.h>
 
-using namespace std;
 using namespace chip;
 using namespace chip::app::DataModel;
 using namespace chip::app::Clusters::ContentLauncher;
diff --git a/examples/tv-app/android/java/application-launcher/ApplicationLauncherManager.cpp b/examples/tv-app/android/java/application-launcher/ApplicationLauncherManager.cpp
index 8ee91292a5e76a..9267a086c64c56 100644
--- a/examples/tv-app/android/java/application-launcher/ApplicationLauncherManager.cpp
+++ b/examples/tv-app/android/java/application-launcher/ApplicationLauncherManager.cpp
@@ -27,7 +27,6 @@
 #include <lib/support/JniReferences.h>
 #include <lib/support/JniTypeWrappers.h>
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters;
 using namespace chip::app::Clusters::ApplicationLauncher;
diff --git a/examples/tv-app/tv-common/clusters/account-login/AccountLoginManager.cpp b/examples/tv-app/tv-common/clusters/account-login/AccountLoginManager.cpp
index 9264553c14d002..21c96255ea6f37 100644
--- a/examples/tv-app/tv-common/clusters/account-login/AccountLoginManager.cpp
+++ b/examples/tv-app/tv-common/clusters/account-login/AccountLoginManager.cpp
@@ -21,7 +21,6 @@
 #include <app/CommandHandler.h>
 #include <app/util/config.h>
 
-using namespace std;
 using namespace chip::app::Clusters::AccountLogin;
 
 AccountLoginManager::AccountLoginManager(const char * setupPin)
@@ -32,8 +31,8 @@ AccountLoginManager::AccountLoginManager(const char * setupPin)
 bool AccountLoginManager::HandleLogin(const CharSpan & tempAccountIdentifier, const CharSpan & setupPin,
                                       const chip::Optional<chip::NodeId> & nodeId)
 {
-    string tempAccountIdentifierString(tempAccountIdentifier.data(), tempAccountIdentifier.size());
-    string setupPinString(setupPin.data(), setupPin.size());
+    std::string tempAccountIdentifierString(tempAccountIdentifier.data(), tempAccountIdentifier.size());
+    std::string setupPinString(setupPin.data(), setupPin.size());
     ChipLogProgress(Zcl, "temporary account id: %s", tempAccountIdentifierString.c_str());
     ChipLogProgress(Zcl, "setup pin %s", setupPinString.c_str());
 
@@ -57,7 +56,7 @@ bool AccountLoginManager::HandleLogout(const chip::Optional<chip::NodeId> & node
 void AccountLoginManager::HandleGetSetupPin(CommandResponseHelper<GetSetupPINResponse> & helper,
                                             const CharSpan & tempAccountIdentifier)
 {
-    string tempAccountIdentifierString(tempAccountIdentifier.data(), tempAccountIdentifier.size());
+    std::string tempAccountIdentifierString(tempAccountIdentifier.data(), tempAccountIdentifier.size());
 
     GetSetupPINResponse response;
     ChipLogProgress(Zcl, "temporary account id: %s returning pin: %s", tempAccountIdentifierString.c_str(), mSetupPin);
diff --git a/examples/tv-app/tv-common/clusters/application-basic/ApplicationBasicManager.cpp b/examples/tv-app/tv-common/clusters/application-basic/ApplicationBasicManager.cpp
index d94177155f4fde..80e11460bd88e3 100644
--- a/examples/tv-app/tv-common/clusters/application-basic/ApplicationBasicManager.cpp
+++ b/examples/tv-app/tv-common/clusters/application-basic/ApplicationBasicManager.cpp
@@ -18,7 +18,6 @@
 
 #include "ApplicationBasicManager.h"
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters::ApplicationBasic;
 
diff --git a/examples/tv-app/tv-common/clusters/application-launcher/ApplicationLauncherManager.cpp b/examples/tv-app/tv-common/clusters/application-launcher/ApplicationLauncherManager.cpp
index c915856f48fd4d..3a4960970f06ba 100644
--- a/examples/tv-app/tv-common/clusters/application-launcher/ApplicationLauncherManager.cpp
+++ b/examples/tv-app/tv-common/clusters/application-launcher/ApplicationLauncherManager.cpp
@@ -18,7 +18,6 @@
 
 #include "ApplicationLauncherManager.h"
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters;
 using namespace chip::app::Clusters::ApplicationLauncher;
diff --git a/examples/tv-app/tv-common/clusters/audio-output/AudioOutputManager.cpp b/examples/tv-app/tv-common/clusters/audio-output/AudioOutputManager.cpp
index 1b8a6a36c84912..77a1e2111b44be 100644
--- a/examples/tv-app/tv-common/clusters/audio-output/AudioOutputManager.cpp
+++ b/examples/tv-app/tv-common/clusters/audio-output/AudioOutputManager.cpp
@@ -18,7 +18,6 @@
 
 #include "AudioOutputManager.h"
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters::AudioOutput;
 
diff --git a/examples/tv-app/tv-common/clusters/content-app-observer/ContentAppObserver.cpp b/examples/tv-app/tv-common/clusters/content-app-observer/ContentAppObserver.cpp
index a6010a54b0a0f5..9c42fe3f11a525 100644
--- a/examples/tv-app/tv-common/clusters/content-app-observer/ContentAppObserver.cpp
+++ b/examples/tv-app/tv-common/clusters/content-app-observer/ContentAppObserver.cpp
@@ -20,7 +20,6 @@
 #include <app-common/zap-generated/attributes/Accessors.h>
 #include <app/util/config.h>
 
-using namespace std;
 using namespace chip;
 using namespace chip::app::Clusters::ContentAppObserver;
 
diff --git a/examples/tv-app/tv-common/clusters/content-control/ContentController.cpp b/examples/tv-app/tv-common/clusters/content-control/ContentController.cpp
index 19317a71b7cfaf..352b204bab65cb 100644
--- a/examples/tv-app/tv-common/clusters/content-control/ContentController.cpp
+++ b/examples/tv-app/tv-common/clusters/content-control/ContentController.cpp
@@ -19,7 +19,6 @@
 #include <app-common/zap-generated/attributes/Accessors.h>
 #include <app/util/config.h>
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters;
 using namespace chip::app::DataModel;
diff --git a/examples/tv-app/tv-common/clusters/content-launcher/ContentLauncherManager.cpp b/examples/tv-app/tv-common/clusters/content-launcher/ContentLauncherManager.cpp
index f0519619c2052a..74dd6de8c8071a 100644
--- a/examples/tv-app/tv-common/clusters/content-launcher/ContentLauncherManager.cpp
+++ b/examples/tv-app/tv-common/clusters/content-launcher/ContentLauncherManager.cpp
@@ -23,13 +23,12 @@
 #include <list>
 #include <string>
 
-using namespace std;
 using namespace chip::app;
 using namespace chip::app::Clusters;
 using namespace chip::app::DataModel;
 using namespace chip::app::Clusters::ContentLauncher;
 
-ContentLauncherManager::ContentLauncherManager(list<std::string> acceptHeaderList, uint32_t supportedStreamingProtocols)
+ContentLauncherManager::ContentLauncherManager(std::list<std::string> acceptHeaderList, uint32_t supportedStreamingProtocols)
 {
     mAcceptHeaderList            = acceptHeaderList;
     mSupportedStreamingProtocols = supportedStreamingProtocols;
@@ -103,7 +102,7 @@ void ContentLauncherManager::HandleLaunchContent(CommandResponseHelper<LaunchRes
                                                  bool useCurrentContext)
 {
     ChipLogProgress(Zcl, "ContentLauncherManager::HandleLaunchContent");
-    string dataString(data.data(), data.size());
+    std::string dataString(data.data(), data.size());
 
     ChipLogProgress(Zcl, "ContentLauncherManager::HandleLaunchContent TEST CASE autoplay=%d data=%s ", (autoplay ? 1 : 0),
                     dataString.c_str());
@@ -122,8 +121,8 @@ void ContentLauncherManager::HandleLaunchContent(CommandResponseHelper<LaunchRes
             {
                 if (parameter.type == parameterType.type)
                 {
-                    string val1(parameter.value.data(), parameter.value.size());
-                    string val2(parameterType.value.data(), parameterType.value.size());
+                    std::string val1(parameter.value.data(), parameter.value.size());
+                    std::string val2(parameterType.value.data(), parameterType.value.size());
                     if (strcmp(val1.c_str(), val2.c_str()) == 0)
                     {
                         ChipLogProgress(Zcl, " TEST CASE found match=%s type=%d", contentEntry.mName.c_str(),
@@ -152,9 +151,9 @@ void ContentLauncherManager::HandleLaunchUrl(CommandResponseHelper<LaunchRespons
 {
     ChipLogProgress(Zcl, "ContentLauncherManager::HandleLaunchUrl");
 
-    string contentUrlString(contentUrl.data(), contentUrl.size());
-    string displayStringString(displayString.data(), displayString.size());
-    string providerNameString(brandingInformation.providerName.data(), brandingInformation.providerName.size());
+    std::string contentUrlString(contentUrl.data(), contentUrl.size());
+    std::string displayStringString(displayString.data(), displayString.size());
+    std::string providerNameString(brandingInformation.providerName.data(), brandingInformation.providerName.size());
 
     ChipLogProgress(
         Zcl, "ContentLauncherManager::HandleLaunchUrl TEST CASE ContentURL=%s DisplayString=%s BrandingInformation.ProviderName=%s",
diff --git a/src/app/clusters/dishwasher-alarm-server/dishwasher-alarm-server.cpp b/src/app/clusters/dishwasher-alarm-server/dishwasher-alarm-server.cpp
index b3c9b8edbccf34..672df0af786d3d 100644
--- a/src/app/clusters/dishwasher-alarm-server/dishwasher-alarm-server.cpp
+++ b/src/app/clusters/dishwasher-alarm-server/dishwasher-alarm-server.cpp
@@ -33,7 +33,6 @@ using namespace chip::app::Clusters::DishwasherAlarm;
 using namespace chip::app::Clusters::DishwasherAlarm::Attributes;
 using namespace chip::DeviceLayer;
 using chip::Protocols::InteractionModel::Status;
-using namespace std;
 
 static constexpr size_t kDishwasherAlarmDelegateTableSize =
     MATTER_DM_DISHWASHER_ALARM_CLUSTER_SERVER_ENDPOINT_COUNT + CHIP_DEVICE_CONFIG_DYNAMIC_ENDPOINT_COUNT;
diff --git a/src/app/clusters/mode-select-server/mode-select-server.cpp b/src/app/clusters/mode-select-server/mode-select-server.cpp
index 5f247bb4b2e95d..813d16d965148e 100644
--- a/src/app/clusters/mode-select-server/mode-select-server.cpp
+++ b/src/app/clusters/mode-select-server/mode-select-server.cpp
@@ -37,7 +37,6 @@
 #include <app/clusters/on-off-server/on-off-server.h>
 #endif // MATTER_DM_PLUGIN_ON_OFF
 
-using namespace std;
 using namespace chip;
 using namespace chip::app;
 using namespace chip::app::Clusters;
diff --git a/src/app/clusters/refrigerator-alarm-server/refrigerator-alarm-server.cpp b/src/app/clusters/refrigerator-alarm-server/refrigerator-alarm-server.cpp
index 620e113177c1c7..751bd768cdf8ee 100644
--- a/src/app/clusters/refrigerator-alarm-server/refrigerator-alarm-server.cpp
+++ b/src/app/clusters/refrigerator-alarm-server/refrigerator-alarm-server.cpp
@@ -32,7 +32,6 @@ using namespace chip::app::Clusters::RefrigeratorAlarm::Attributes;
 using namespace chip::DeviceLayer;
 using chip::Protocols::InteractionModel::Status;
 
-using namespace std;
 RefrigeratorAlarmServer RefrigeratorAlarmServer::instance;
 
 RefrigeratorAlarmServer & RefrigeratorAlarmServer::Instance()
diff --git a/src/app/clusters/resource-monitoring-server/resource-monitoring-server.cpp b/src/app/clusters/resource-monitoring-server/resource-monitoring-server.cpp
index b8d885599245a4..4447ad1cc0f210 100644
--- a/src/app/clusters/resource-monitoring-server/resource-monitoring-server.cpp
+++ b/src/app/clusters/resource-monitoring-server/resource-monitoring-server.cpp
@@ -35,7 +35,6 @@
 #include <protocols/interaction_model/StatusCode.h>
 
 // using namespace std;
-using namespace chip;
 using namespace chip::app;
 using namespace chip::app::Clusters;
 using namespace chip::app::Clusters::ResourceMonitoring;
diff --git a/src/lib/dnssd/minimal_mdns/tests/FuzzPacketParsingPW.cpp b/src/lib/dnssd/minimal_mdns/tests/FuzzPacketParsingPW.cpp
index aec550b26e026a..0ea5de55013994 100644
--- a/src/lib/dnssd/minimal_mdns/tests/FuzzPacketParsingPW.cpp
+++ b/src/lib/dnssd/minimal_mdns/tests/FuzzPacketParsingPW.cpp
@@ -10,7 +10,6 @@
 namespace {
 
 using namespace fuzztest;
-using namespace std;
 
 using namespace chip;
 using namespace mdns::Minimal;
@@ -65,16 +64,16 @@ void PacketParserFuzz(const std::vector<std::uint8_t> & bytes)
     mdns::Minimal::ParsePacket(packet, &delegate);
 }
 
-FUZZ_TEST(MinimalmDNS, PacketParserFuzz).WithDomains(Arbitrary<vector<uint8_t>>());
+FUZZ_TEST(MinimalmDNS, PacketParserFuzz).WithDomains(Arbitrary<std::vector<uint8_t>>());
 
 class TxtRecordAccumulator : public TxtRecordDelegate
 {
 public:
-    using DataType = vector<pair<string, string>>;
+    using DataType = std::vector<std::pair<std::string, std::string>>;
 
     void OnRecord(const BytesRange & name, const BytesRange & value) override
     {
-        mData.push_back(make_pair(AsString(name), AsString(value)));
+        mData.push_back(std::make_pair(AsString(name), AsString(value)));
     }
 
     DataType & Data() { return mData; }
@@ -83,9 +82,9 @@ class TxtRecordAccumulator : public TxtRecordDelegate
 private:
     DataType mData;
 
-    static string AsString(const BytesRange & range)
+    static std::string AsString(const BytesRange & range)
     {
-        return string(reinterpret_cast<const char *>(range.Start()), reinterpret_cast<const char *>(range.End()));
+        return std::string(reinterpret_cast<const char *>(range.Start()), reinterpret_cast<const char *>(range.End()));
     }
 };
 
diff --git a/src/lib/dnssd/minimal_mdns/tests/TestAdvertiser.cpp b/src/lib/dnssd/minimal_mdns/tests/TestAdvertiser.cpp
index ea85f74d2be11a..6b626be3631d33 100644
--- a/src/lib/dnssd/minimal_mdns/tests/TestAdvertiser.cpp
+++ b/src/lib/dnssd/minimal_mdns/tests/TestAdvertiser.cpp
@@ -38,7 +38,6 @@
 
 namespace {
 
-using namespace std;
 using namespace chip;
 using namespace chip::Dnssd;
 using namespace mdns::Minimal;
diff --git a/src/lib/dnssd/minimal_mdns/tests/TestRecordData.cpp b/src/lib/dnssd/minimal_mdns/tests/TestRecordData.cpp
index dcd48959be01ea..ae9e37e42ad960 100644
--- a/src/lib/dnssd/minimal_mdns/tests/TestRecordData.cpp
+++ b/src/lib/dnssd/minimal_mdns/tests/TestRecordData.cpp
@@ -26,7 +26,6 @@
 
 namespace {
 
-using namespace std;
 using namespace chip;
 using namespace mdns::Minimal;
 
@@ -205,11 +204,11 @@ TEST(TestRecordData, PtrRecordComplexParsing)
 class TxtRecordAccumulator : public TxtRecordDelegate
 {
 public:
-    using DataType = vector<pair<string, string>>;
+    using DataType = std::vector<std::pair<std::string, std::string>>;
 
     void OnRecord(const BytesRange & name, const BytesRange & value) override
     {
-        mData.push_back(make_pair(AsString(name), AsString(value)));
+        mData.push_back(std::make_pair(AsString(name), AsString(value)));
     }
 
     DataType & Data() { return mData; }
@@ -218,9 +217,9 @@ class TxtRecordAccumulator : public TxtRecordDelegate
 private:
     DataType mData;
 
-    static string AsString(const BytesRange & range)
+    static std::string AsString(const BytesRange & range)
     {
-        return string(reinterpret_cast<const char *>(range.Start()), reinterpret_cast<const char *>(range.End()));
+        return std::string(reinterpret_cast<const char *>(range.Start()), reinterpret_cast<const char *>(range.End()));
     }
 };
 
@@ -237,9 +236,9 @@ TEST(TestRecordData, TxtRecord)
 
     EXPECT_TRUE(ParseTxtRecord(BytesRange(record, record + sizeof(record)), &accumulator));
     EXPECT_EQ(accumulator.Data().size(), 4u);
-    EXPECT_EQ(accumulator.Data()[0], (make_pair<std::string, std::string>("some", "")));
-    EXPECT_EQ(accumulator.Data()[1], (make_pair<std::string, std::string>("foo", "bar")));
-    EXPECT_EQ(accumulator.Data()[2], (make_pair<std::string, std::string>("x", "y=z")));
-    EXPECT_EQ(accumulator.Data()[3], (make_pair<std::string, std::string>("a", "")));
+    EXPECT_EQ(accumulator.Data()[0], (std::make_pair<std::string, std::string>("some", "")));
+    EXPECT_EQ(accumulator.Data()[1], (std::make_pair<std::string, std::string>("foo", "bar")));
+    EXPECT_EQ(accumulator.Data()[2], (std::make_pair<std::string, std::string>("x", "y=z")));
+    EXPECT_EQ(accumulator.Data()[3], (std::make_pair<std::string, std::string>("a", "")));
 }
 } // namespace
diff --git a/src/lib/dnssd/minimal_mdns/tests/TestResponseSender.cpp b/src/lib/dnssd/minimal_mdns/tests/TestResponseSender.cpp
index abfceb52080f13..c08b6c82b84b8c 100644
--- a/src/lib/dnssd/minimal_mdns/tests/TestResponseSender.cpp
+++ b/src/lib/dnssd/minimal_mdns/tests/TestResponseSender.cpp
@@ -34,7 +34,6 @@
 
 namespace {
 
-using namespace std;
 using namespace chip;
 using namespace mdns::Minimal;
 using namespace mdns::Minimal::test;
diff --git a/src/platform/Tizen/SystemInfo.cpp b/src/platform/Tizen/SystemInfo.cpp
index e9ac7d7b1b1675..dd4f9f83ec8d0a 100644
--- a/src/platform/Tizen/SystemInfo.cpp
+++ b/src/platform/Tizen/SystemInfo.cpp
@@ -26,8 +26,6 @@
 
 #include "ErrorUtils.h"
 
-using namespace std;
-
 namespace chip {
 namespace DeviceLayer {
 namespace Internal {
diff --git a/src/platform/stm32/CHIPMem-Platform.cpp b/src/platform/stm32/CHIPMem-Platform.cpp
index b9bf90f429f444..cbf52cfde94a84 100644
--- a/src/platform/stm32/CHIPMem-Platform.cpp
+++ b/src/platform/stm32/CHIPMem-Platform.cpp
@@ -67,8 +67,6 @@ extern "C" void memMonitoringTrackFree(void * ptr, size_t size);
 
 #define USE_FREERTOS
 
-using namespace std;
-
 // Define the new operator for C++ to use the freeRTOS memory management
 // functions.
 //
diff --git a/src/setup_payload/tests/TestQRCode.cpp b/src/setup_payload/tests/TestQRCode.cpp
index e5d68227c2956e..25cb4cea8089f7 100644
--- a/src/setup_payload/tests/TestQRCode.cpp
+++ b/src/setup_payload/tests/TestQRCode.cpp
@@ -32,7 +32,6 @@
 #include <lib/support/Span.h>
 
 using namespace chip;
-using namespace std;
 
 namespace {
 
diff --git a/src/setup_payload/tests/TestQRCodeTLV.cpp b/src/setup_payload/tests/TestQRCodeTLV.cpp
index 7ea2b974070275..27e7027101ae18 100644
--- a/src/setup_payload/tests/TestQRCodeTLV.cpp
+++ b/src/setup_payload/tests/TestQRCodeTLV.cpp
@@ -24,7 +24,6 @@
 #include <lib/support/ScopedBuffer.h>
 
 using namespace chip;
-using namespace std;
 
 namespace {