diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6faafa19c4..ed0bba815c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -59,6 +59,8 @@ release.
   ([#252](https://github.com/open-telemetry/semantic-conventions/pull/252))
 - Simplify HTTP metric briefs.
   ([#276](https://github.com/open-telemetry/semantic-conventions/pull/276))
+- Add host cpu resource attributes.
+  ([#209](https://github.com/open-telemetry/semantic-conventions/pull/209))
 
 ## v1.21.0 (2023-07-13)
 
diff --git a/docs/resource/host.md b/docs/resource/host.md
index 96d7da4dea..150755dc19 100644
--- a/docs/resource/host.md
+++ b/docs/resource/host.md
@@ -31,6 +31,21 @@
 | `x86` | 32-bit x86 |
 <!-- endsemconv -->
 
+**type:** `host.cpu`
+
+<!-- semconv host.cpu -->
+| Attribute  | Type | Description  | Examples  | Requirement Level |
+|---|---|---|---|---|
+| `host.cpu.vendor.id` | string | Processor manufacturer identifier. A maximum 12-character string. [1] | `GenuineIntel` | Opt-In |
+| `host.cpu.family` | int | Numeric value specifying the family or generation of the CPU. | `6` | Opt-In |
+| `host.cpu.model.id` | int | Model identifier. It provides more granular information about the CPU, distinguishing it from other CPUs within the same family. | `6` | Opt-In |
+| `host.cpu.model.name` | string | Model designation of the processor. | `11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz` | Opt-In |
+| `host.cpu.stepping` | int | Stepping or core revisions. | `1` | Opt-In |
+| `host.cpu.cache.l2.size` | int | The amount of level 2 memory cache available to the processor (in Bytes). | `12288000` | Opt-In |
+
+**[1]:** [CPUID](https://wiki.osdev.org/CPUID) command returns the vendor ID string in EBX, EDX and ECX registers. Writing these to memory in this order results in a 12-character string.
+<!-- endsemconv -->
+
 ## Collecting host.id from non-containerized systems
 
 ### Non-privileged Machine ID Lookup
diff --git a/model/resource/host.yaml b/model/resource/host.yaml
index 457aa1c8ae..2839d8f660 100644
--- a/model/resource/host.yaml
+++ b/model/resource/host.yaml
@@ -70,3 +70,49 @@ groups:
           The version string of the VM image or host OS as defined in
           [Version Attributes](README.md#version-attributes).
         examples: ['0.1']
+  - id: host.cpu
+    prefix: host.cpu
+    type: resource
+    brief: >
+      A host's CPU information
+    attributes:
+      - id: vendor.id
+        requirement_level: opt_in
+        type: string
+        brief: >
+          Processor manufacturer identifier. A maximum 12-character string.
+        note: >
+          [CPUID](https://wiki.osdev.org/CPUID) command returns the vendor ID string in EBX, EDX and ECX registers.
+          Writing these to memory in this order results in a 12-character string.
+        examples: [ 'GenuineIntel' ]
+      - id: family
+        requirement_level: opt_in
+        type: int
+        brief: >
+          Numeric value specifying the family or generation of the CPU.
+        examples: [ 6 ]
+      - id: model.id
+        requirement_level: opt_in
+        type: int
+        brief: >
+          Model identifier. It provides more granular information about the CPU, distinguishing it from
+          other CPUs within the same family.
+        examples: [ 6 ]
+      - id: model.name
+        requirement_level: opt_in
+        type: string
+        brief: >
+          Model designation of the processor.
+        examples: [ '11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz' ]
+      - id: stepping
+        requirement_level: opt_in
+        type: int
+        brief: >
+          Stepping or core revisions.
+        examples: [ 1 ]
+      - id: cache.l2.size
+        requirement_level: opt_in
+        type: int
+        brief: >
+          The amount of level 2 memory cache available to the processor (in Bytes).
+        examples: [ 12288000 ]