diff --git a/boards/nordic/thingy52/doc/index.rst b/boards/nordic/thingy52/doc/index.rst
index 0dd8b6067b6..e56f00df343 100644
--- a/boards/nordic/thingy52/doc/index.rst
+++ b/boards/nordic/thingy52/doc/index.rst
@@ -3,6 +3,11 @@
 Thingy:52
 #########
 
+.. warning::
+
+   Nordic Semiconductor no longer offers support for this board, so it is not
+   recommended for new prototypes.
+
 Overview
 ********