diff --git a/scripts/net/README.txt b/scripts/net/README.txt
index 2d184ce1d3..7a4dee569a 100644
--- a/scripts/net/README.txt
+++ b/scripts/net/README.txt
@@ -46,7 +46,7 @@ User can see what samples are supported like this:
    $ZEPHYR_BASE/scripts/net/run-sample-tests.sh --scan
 
 The Docker container and a corresponding 'net-tools0' Docker network is started
-by the script, as well as Zephyr using native_posix board. IP addresses are
+by the script, as well as Zephyr using native_sim board. IP addresses are
 assigned to the Docker network, which is a Linux network bridge interface.
 The default IP addresses are:
 
diff --git a/tests/net/checksum_offload/src/main.c b/tests/net/checksum_offload/src/main.c
index da65d69f4f..978488ad29 100644
--- a/tests/net/checksum_offload/src/main.c
+++ b/tests/net/checksum_offload/src/main.c
@@ -72,7 +72,7 @@ static struct in_addr in4addr_dst = { { { 192, 0, 2, 2 } } };
 static struct in_addr in4addr_my2 = { { { 192, 0, 42, 1 } } };
 static struct in_addr in4addr_dst2 = { { { 192, 0, 42, 2 } } };
 
-/* Keep track of all ethernet interfaces. For native_posix board, we need
+/* Keep track of all ethernet interfaces. For native_sim board, we need
  * to increase the count as it has one extra network interface defined in
  * eth_native_posix driver.
  */
diff --git a/tests/net/iface/src/main.c b/tests/net/iface/src/main.c
index d5cada6fc4..54125c34ea 100644
--- a/tests/net/iface/src/main.c
+++ b/tests/net/iface/src/main.c
@@ -297,7 +297,7 @@ static void iface_cb(struct net_if *iface, void *user_data)
 		const struct ethernet_api *api =
 			net_if_get_device(iface)->api;
 
-		/* As native_posix board will introduce another ethernet
+		/* As native_sim board will introduce another ethernet
 		 * interface, make sure that we only use our own in this test.
 		 */
 		if (api->get_capabilities ==
diff --git a/tests/net/promiscuous/src/main.c b/tests/net/promiscuous/src/main.c
index 9bedd9773b..364917b7de 100644
--- a/tests/net/promiscuous/src/main.c
+++ b/tests/net/promiscuous/src/main.c
@@ -178,7 +178,7 @@ static void iface_cb(struct net_if *iface, void *user_data)
 		const struct ethernet_api *api =
 			net_if_get_device(iface)->api;
 
-		/* As native_posix board will introduce another ethernet
+		/* As native_sim board will introduce another ethernet
 		 * interface, make sure that we only use our own in this test.
 		 */
 		if (api->get_capabilities ==