diff --git a/samples/posix/env/README.rst b/samples/posix/env/README.rst
index 6ece6691f79..2f020ba6b88 100644
--- a/samples/posix/env/README.rst
+++ b/samples/posix/env/README.rst
@@ -1,7 +1,7 @@
-.. _posix-env-sample:
+.. zephyr:code-sample:: posix-env
+   :name: Environment Variables
 
-POSIX Environment Variables
-###########################
+   Manipulate environment variables from a Zephyr application.
 
 Overview
 ********
diff --git a/samples/posix/eventfd/README.rst b/samples/posix/eventfd/README.rst
index c6947d6e57c..d2e6a48c9be 100644
--- a/samples/posix/eventfd/README.rst
+++ b/samples/posix/eventfd/README.rst
@@ -1,7 +1,7 @@
-.. _posix-eventfd-sample:
+.. zephyr:code-sample:: posix-eventfd
+   :name: eventfd()
 
-POSIX eventfd()
-###############
+   Use ``eventfd()`` to create a file descriptor for event notification.
 
 Overview
 ********
diff --git a/samples/posix/gettimeofday/README.rst b/samples/posix/gettimeofday/README.rst
index a9cd4771818..868579d62c9 100644
--- a/samples/posix/gettimeofday/README.rst
+++ b/samples/posix/gettimeofday/README.rst
@@ -1,7 +1,7 @@
-.. _posix-gettimeofday-sample:
+.. zephyr:code-sample:: posix-gettimeofday
+   :name: gettimeofday() with clock initialization
 
-POSIX gettimeofday() with clock initialization over SNTP
-########################################################
+   Use ``gettimeofday()`` with clock initialization over SNTP.
 
 Overview
 ********
diff --git a/samples/posix/philosophers/README.rst b/samples/posix/philosophers/README.rst
index a480d4398a7..604fb8858dd 100644
--- a/samples/posix/philosophers/README.rst
+++ b/samples/posix/philosophers/README.rst
@@ -1,7 +1,7 @@
-.. _posix-philosophers-sample:
+.. zephyr:code-sample:: posix-philosophers
+   :name: POSIX Philosophers
 
-POSIX Philosophers
-##################
+   Implement a solution to the Dining Philosophers problem using the POSIX API.
 
 Overview
 ********
diff --git a/samples/posix/uname/README.rst b/samples/posix/uname/README.rst
index a7d6c69946b..e0f9514ef0b 100644
--- a/samples/posix/uname/README.rst
+++ b/samples/posix/uname/README.rst
@@ -1,7 +1,7 @@
-.. _posix-uname-sample:
+.. zephyr:code-sample:: posix-uname
+   :name: uname()
 
-POSIX uname()
-#############
+   Use ``uname()`` to acquire system information and output it to the console.
 
 Overview
 ********