diff --git a/doc/releases/release-notes-3.5.rst b/doc/releases/release-notes-3.5.rst
index 00e23f6d30b..0fd4fb94a95 100644
--- a/doc/releases/release-notes-3.5.rst
+++ b/doc/releases/release-notes-3.5.rst
@@ -328,6 +328,9 @@ Libraries / Subsystems
   * Added :kconfig:option:`CONFIG_MCUMGR_GRP_IMG_ALLOW_ERASE_PENDING` that allows
     to erase slots pending for next boot, that are not revert slots.
 
+  * Added ``user_data`` as an optional field to :c:struct:`mgmt_handler` when
+    :kconfig:option:`CONFIG_MCUMGR_MGMT_HANDLER_USER_DATA` is enabled.
+
 * File systems
 
   * Added support for ext2 file system.
diff --git a/include/zephyr/mgmt/mcumgr/mgmt/mgmt.h b/include/zephyr/mgmt/mcumgr/mgmt/mgmt.h
index e681ea2b939..ec09bb03467 100644
--- a/include/zephyr/mgmt/mcumgr/mgmt/mgmt.h
+++ b/include/zephyr/mgmt/mcumgr/mgmt/mgmt.h
@@ -71,6 +71,9 @@ typedef int (*mgmt_handler_fn)(struct smp_streamer *ctxt);
 struct mgmt_handler {
 	mgmt_handler_fn mh_read;
 	mgmt_handler_fn mh_write;
+#if IS_ENABLED(CONFIG_MCUMGR_MGMT_HANDLER_USER_DATA)
+	void *user_data;
+#endif
 };
 
 /**
diff --git a/subsys/mgmt/mcumgr/mgmt/Kconfig b/subsys/mgmt/mcumgr/mgmt/Kconfig
index d1701627860..a0c889f0c5e 100644
--- a/subsys/mgmt/mcumgr/mgmt/Kconfig
+++ b/subsys/mgmt/mcumgr/mgmt/Kconfig
@@ -25,3 +25,9 @@ config MCUMGR_MGMT_NOTIFICATION_HOOKS
 	  or decline the current operation, by returning false this will signal to the calling
 	  function that the request should be denied, for informal-only notifications or
 	  acceptable, true must be returned by all the registered notification handlers.
+
+config MCUMGR_MGMT_HANDLER_USER_DATA
+	bool "MCUmgr mgmt handler user data support"
+	help
+	  This will add an extra field to the struct mgmt_handler that will allow a user
+	  to pass user_data when the defined handler is called.