diff --git a/system/Commands/Utilities/Publish.php b/system/Commands/Utilities/Publish.php
index 3e19685cba81..13ffa96eafc6 100644
--- a/system/Commands/Utilities/Publish.php
+++ b/system/Commands/Utilities/Publish.php
@@ -67,17 +67,24 @@ class Publish extends BaseCommand
      *
      * @var array<string, string>
      */
-    protected $options = [];
+    protected $options = [
+        '--namespace' => 'The namespace from which to search for files to publish. By default, all namespaces are analysed.',
+    ];
 
     /**
      * Displays the help for the spark cli script itself.
      */
     public function run(array $params)
     {
-        $directory = array_shift($params) ?? 'Publishers';
+        $directory = $params[0] ?? 'Publishers';
+        $namespace = $params['namespace'] ?? '';
 
-        if ([] === $publishers = Publisher::discover($directory)) {
-            CLI::write(lang('Publisher.publishMissing', [$directory]));
+        if ([] === $publishers = Publisher::discover($directory, $namespace)) {
+            if ($namespace === '') {
+                CLI::write(lang('Publisher.publishMissing', [$directory]));
+            } else {
+                CLI::write(lang('Publisher.publishMissingNamespace', [$directory, $namespace]));
+            }
 
             return;
         }
diff --git a/system/Language/en/Publisher.php b/system/Language/en/Publisher.php
index eb18dfebd555..c2d6d51ec900 100644
--- a/system/Language/en/Publisher.php
+++ b/system/Language/en/Publisher.php
@@ -18,7 +18,8 @@
     'fileNotAllowed'        => '"{0}" fails the following restriction for "{1}": {2}',
 
     // Publish Command
-    'publishMissing' => 'No Publisher classes detected in {0} across all namespaces.',
-    'publishSuccess' => '"{0}" published {1} file(s) to "{2}".',
-    'publishFailure' => '"{0}" failed to publish to "{1}".',
+    'publishMissing'          => 'No Publisher classes detected in {0} across all namespaces.',
+    'publishMissingNamespace' => 'No Publisher classes detected in {0} in the {1} namespace.',
+    'publishSuccess'          => '"{0}" published {1} file(s) to "{2}".',
+    'publishFailure'          => '"{0}" failed to publish to "{1}".',
 ];
diff --git a/system/Publisher/Publisher.php b/system/Publisher/Publisher.php
index bf81f6079b60..d65765947db1 100644
--- a/system/Publisher/Publisher.php
+++ b/system/Publisher/Publisher.php
@@ -99,18 +99,24 @@ class Publisher extends FileCollection
      *
      * @return list<self>
      */
-    final public static function discover(string $directory = 'Publishers'): array
+    final public static function discover(string $directory = 'Publishers', string $namespace = ''): array
     {
-        if (isset(self::$discovered[$directory])) {
-            return self::$discovered[$directory];
+        $key = implode('.', [$namespace, $directory]);
+
+        if (isset(self::$discovered[$key])) {
+            return self::$discovered[$key];
         }
 
-        self::$discovered[$directory] = [];
+        self::$discovered[$key] = [];
 
         /** @var FileLocatorInterface $locator */
         $locator = service('locator');
 
-        if ([] === $files = $locator->listFiles($directory)) {
+        $files = $namespace === ''
+            ? $locator->listFiles($directory)
+            : $locator->listNamespaceFiles($namespace, $directory);
+
+        if ([] === $files) {
             return [];
         }
 
@@ -119,13 +125,13 @@ final public static function discover(string $directory = 'Publishers'): array
             $className = $locator->findQualifiedNameFromPath($file);
 
             if ($className !== false && class_exists($className) && is_a($className, self::class, true)) {
-                self::$discovered[$directory][] = new $className();
+                self::$discovered[$key][] = new $className();
             }
         }
 
-        sort(self::$discovered[$directory]);
+        sort(self::$discovered[$key]);
 
-        return self::$discovered[$directory];
+        return self::$discovered[$key];
     }
 
     /**
diff --git a/tests/system/Publisher/PublisherSupportTest.php b/tests/system/Publisher/PublisherSupportTest.php
index 5854e1c516d9..e92bdd0c69c3 100644
--- a/tests/system/Publisher/PublisherSupportTest.php
+++ b/tests/system/Publisher/PublisherSupportTest.php
@@ -61,6 +61,20 @@ public function testDiscoverNothing(): void
         $this->assertSame([], $result);
     }
 
+    public function testDiscoverInNamespace(): void
+    {
+        $result = Publisher::discover('Publishers', 'Tests\Support');
+        $this->assertCount(1, $result);
+        $this->assertInstanceOf(TestPublisher::class, $result[0]);
+    }
+
+    public function testDiscoverInUnknowNamespace(): void
+    {
+        $result = Publisher::discover('Publishers', 'Nothing\App');
+
+        $this->assertSame([], $result);
+    }
+
     public function testDiscoverStores(): void
     {
         $publisher = Publisher::discover()[0];
diff --git a/user_guide_src/source/changelogs/v4.6.0.rst b/user_guide_src/source/changelogs/v4.6.0.rst
index d3dc4529d512..0432a20e3cac 100644
--- a/user_guide_src/source/changelogs/v4.6.0.rst
+++ b/user_guide_src/source/changelogs/v4.6.0.rst
@@ -160,6 +160,11 @@ Removed Deprecated Items
 Enhancements
 ************
 
+Publisher
+=========
+
+- ``Publisher::discover()`` now accepts a second parameter (``namespace``) specifying the namespace in which publishers should be searched. See :ref:`discovery-in-a-specific-namespace` for the details.
+
 Exceptions
 ==========
 
diff --git a/user_guide_src/source/libraries/publisher.rst b/user_guide_src/source/libraries/publisher.rst
index 99531eacca5b..69b5df6c9f0c 100644
--- a/user_guide_src/source/libraries/publisher.rst
+++ b/user_guide_src/source/libraries/publisher.rst
@@ -75,6 +75,31 @@ Most of the time you will not need to handle your own discovery, just use the pr
 By default on your class extension ``publish()`` will add all files from your ``$source`` and merge them
 out to your destination, overwriting on collision.
 
+.. _discovery-in-a-specific-namespace:
+
+Discovery in a specific namespace
+---------------------------------
+
+.. versionadded:: 4.6.0
+
+Since v4.6.0, you can also scan a specific namespace. This not only reduces the number of files to be scanned,
+but also avoids the need to rerun a Publisher. All you need to do is specify the desired root namespace in the
+second parameter of the ``discover()`` method.
+
+.. literalinclude:: publisher/016.php
+
+The specified namespace must be known to CodeIgniter. You can check the list of all namespaces using the "spark namespaces" command:
+
+.. code-block:: console
+
+    php spark namespaces
+
+The "publish" command also offers the ``--namespace`` option to define the namespace when searching for Publishers that might come from a library.
+
+.. code-block:: console
+
+    php spark publish --namespace Namespace\Vendor\Package
+
 Security
 ========
 
diff --git a/user_guide_src/source/libraries/publisher/016.php b/user_guide_src/source/libraries/publisher/016.php
new file mode 100644
index 000000000000..54f2beca5701
--- /dev/null
+++ b/user_guide_src/source/libraries/publisher/016.php
@@ -0,0 +1,5 @@
+<?php
+
+use CodeIgniter\Publisher\Publisher;
+
+$memePublishers = Publisher::discover('Publishers', 'Namespace\Vendor\Package');