diff --git a/Lib/multiprocessing/resource_tracker.py b/Lib/multiprocessing/resource_tracker.py
index ea369507297f86..3783c1ffc6e4a9 100644
--- a/Lib/multiprocessing/resource_tracker.py
+++ b/Lib/multiprocessing/resource_tracker.py
@@ -221,9 +221,10 @@ def main(fd):
         for rtype, rtype_cache in cache.items():
             if rtype_cache:
                 try:
-                    warnings.warn('resource_tracker: There appear to be %d '
-                                  'leaked %s objects to clean up at shutdown' %
-                                  (len(rtype_cache), rtype))
+                    warnings.warn(
+                        f'resource_tracker: There appear to be {len(rtype_cache)} '
+                        f'leaked {rtype} objects to clean up at shutdown: {rtype_cache}'
+                    )
                 except Exception:
                     pass
             for name in rtype_cache:
diff --git a/Misc/NEWS.d/next/Library/2023-07-20-06-00-35.gh-issue-106739.W1hygr.rst b/Misc/NEWS.d/next/Library/2023-07-20-06-00-35.gh-issue-106739.W1hygr.rst
new file mode 100644
index 00000000000000..168e2019395696
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2023-07-20-06-00-35.gh-issue-106739.W1hygr.rst
@@ -0,0 +1 @@
+Add the ``rtype_cache`` to the warning message (as an addition to the type of leaked objects and the number of leaked objects already included in the message) to make debugging leaked objects easier when the multiprocessing resource tracker process finds leaked objects at shutdown. This helps more quickly identify what was leaked and/or why the leaked object was not properly cleaned up.