diff --git a/boards/deprecated.cmake b/boards/deprecated.cmake
index 20e11bead5b..0d1d0d35d6d 100644
--- a/boards/deprecated.cmake
+++ b/boards/deprecated.cmake
@@ -404,6 +404,11 @@ set(mps3_an547_DEPRECATED
 set(mps3_an547_ns_DEPRECATED
     mps3/an547/ns
 )
+
+set(native_posix_64_DEPRECATED
+    native_posix/native/64
+)
+
 set(nrf21540dk_nrf52840_DEPRECATED
     nrf21540dk
 )
diff --git a/boards/native/native_posix/Kconfig b/boards/native/native_posix/Kconfig
index eee6cd26b03..b629778f4cb 100644
--- a/boards/native/native_posix/Kconfig
+++ b/boards/native/native_posix/Kconfig
@@ -14,18 +14,6 @@ config BOARD_NATIVE_POSIX
 	  An interrupt controller, timer (system tick), and redirects kernel prints to
 	  stdout.
 
-config BOARD_NATIVE_POSIX_64
-	bool
-	select BOARD_NATIVE_POSIX
-	select 64BIT
-	help
-	  Native POSIX - 64 bit version
-	  Will produce a console Linux process which can be executed natively
-	  as a 64-bit executable.
-	  It provides some minimal needed models:
-	  An interrupt controller, timer (system tick), and redirects kernel prints to
-	  stdout.
-
 if BOARD_NATIVE_POSIX
 
 comment "Native POSIX options"
diff --git a/boards/native/native_posix/Kconfig.native_posix_64 b/boards/native/native_posix/Kconfig.native_posix_64
deleted file mode 100644
index 8151a520910..00000000000
--- a/boards/native/native_posix/Kconfig.native_posix_64
+++ /dev/null
@@ -1,5 +0,0 @@
-# Copyright (c) 2024 Nordic Semiconductor ASA
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD_NATIVE_POSIX_64
-	select SOC_POSIX
diff --git a/boards/native/native_posix/board.yml b/boards/native/native_posix/board.yml
index 8ab212aa1f9..0f03465c79b 100644
--- a/boards/native/native_posix/board.yml
+++ b/boards/native/native_posix/board.yml
@@ -5,11 +5,3 @@ boards:
   - name: native
     variants:
     - name: "64"
-
-# This board definition below, together with its respective
-# Kconfig.native_posix_64 exist for backwards compatibility with the hwmv1 board name
-# Once all its usage in tree is removed, or an alias has been introduced they can be removed.
-- name: native_posix_64
-  vendor: zephyr
-  socs:
-  - name: native
diff --git a/boards/native/native_posix/native_posix_64.dts b/boards/native/native_posix/native_posix_64.dts
deleted file mode 100644
index 61c2a62acc5..00000000000
--- a/boards/native/native_posix/native_posix_64.dts
+++ /dev/null
@@ -1,8 +0,0 @@
-/*
- * Copyright (c) 2019 BayLibre SAS
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-/dts-v1/;
-#include "native_posix.dts"
diff --git a/boards/native/native_posix/native_posix_64_defconfig b/boards/native/native_posix/native_posix_64_defconfig
deleted file mode 100644
index b0033eda61f..00000000000
--- a/boards/native/native_posix/native_posix_64_defconfig
+++ /dev/null
@@ -1,4 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-
-CONFIG_CONSOLE=y
-CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=1000000