diff --git a/changelogs/fragments/adoc_noext_fix.yml b/changelogs/fragments/adoc_noext_fix.yml
new file mode 100644
index 00000000000..8dbf06a77d7
--- /dev/null
+++ b/changelogs/fragments/adoc_noext_fix.yml
@@ -0,0 +1,2 @@
+bugfixes:
+- ansible-doc will no longer ignore docs for modules without an extension (https://github.com/ansible/ansible/issues/85279).
diff --git a/lib/ansible/plugins/list.py b/lib/ansible/plugins/list.py
index b040bbd4004..11a6e00a266 100644
--- a/lib/ansible/plugins/list.py
+++ b/lib/ansible/plugins/list.py
@@ -58,7 +58,7 @@ def get_composite_name(collection, name, path, depth):
     return '.'.join(composite)
 
 
-def _list_plugins_from_paths(ptype, dirs, collection, depth=0):
+def _list_plugins_from_paths(ptype, dirs, collection, depth=0, docs=False):
     # TODO: update to use importlib.resources
 
     plugins = {}
@@ -93,14 +93,15 @@ def _list_plugins_from_paths(ptype, dirs, collection, depth=0):
                                 continue
 
                         # actually recurse dirs
-                        plugins.update(_list_plugins_from_paths(ptype, [to_native(full_path)], collection, depth=depth + 1))
+                        plugins.update(_list_plugins_from_paths(ptype, [to_native(full_path)], collection, depth=depth + 1, docs=docs))
                     else:
                         if any([
                                 plugin in C.IGNORE_FILES,                # general files to ignore
                                 to_native(b_ext) in C.REJECT_EXTS,       # general extensions to ignore
-                                b_ext in (b'.yml', b'.yaml', b'.json'),  # ignore docs files TODO: constant!
+                                b_ext in (b'.yml', b'.yaml', b'.json'),  # ignore docs files
                                 plugin in IGNORE.get(bkey, ()),          # plugin in reject list
                                 os.path.islink(full_path),               # skip aliases, author should document in 'aliases' field
+                                not docs and b_ext in (b''),             # ignore no ext when looking for docs files
                         ]):
                             continue
 
@@ -179,7 +180,7 @@ def _list_collection_plugins_with_info(
 
             #     raise Exception('bad acr for %s, %s' % (collection, ptype))
 
-        plugin_paths.update(_list_plugins_from_paths(ptype, dirs, collection))
+        plugin_paths.update(_list_plugins_from_paths(ptype, dirs, collection, docs=True))
 
     plugins = {}
     if ptype in ('module',):
diff --git a/test/integration/targets/ansible-doc/library/bogus_facts b/test/integration/targets/ansible-doc/library/bogus_facts
new file mode 100644
index 00000000000..a6e60dc1719
--- /dev/null
+++ b/test/integration/targets/ansible-doc/library/bogus_facts
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+echo '{
+    "changed": false,
+    "ansible_facts": {"nothing": "to report"},
+}'
diff --git a/test/integration/targets/ansible-doc/library/bogus_facts.py b/test/integration/targets/ansible-doc/library/bogus_facts.py
new file mode 100644
index 00000000000..a2d0ab35862
--- /dev/null
+++ b/test/integration/targets/ansible-doc/library/bogus_facts.py
@@ -0,0 +1,6 @@
+DOCUMENTATION = """
+    module: bogus_facts
+    short_description: bad facts returned
+    version_added: historical
+    description: bogus facts for testing
+"""
diff --git a/test/integration/targets/ansible-doc/library/facts_one b/test/integration/targets/ansible-doc/library/facts_one
new file mode 100644
index 00000000000..7ade37c54ff
--- /dev/null
+++ b/test/integration/targets/ansible-doc/library/facts_one
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+echo '{
+    "changed": false,
+    "ansible_facts": {"factsone": "from facts_one module"}
+}'
diff --git a/test/integration/targets/ansible-doc/library/facts_one.yml b/test/integration/targets/ansible-doc/library/facts_one.yml
new file mode 100644
index 00000000000..875096f7a0f
--- /dev/null
+++ b/test/integration/targets/ansible-doc/library/facts_one.yml
@@ -0,0 +1,5 @@
+DOCUMENTATION:
+    module: facts_one
+    short_description: random facts returned
+    version_added: historical
+    description: random facts for testing
diff --git a/test/integration/targets/ansible-doc/runme.sh b/test/integration/targets/ansible-doc/runme.sh
index aac87c072d4..f135adde744 100755
--- a/test/integration/targets/ansible-doc/runme.sh
+++ b/test/integration/targets/ansible-doc/runme.sh
@@ -281,3 +281,9 @@ test "$(ansible-doc -l -t module --playbook-dir ./ 2>&1 1>/dev/null |grep -c "no
 
 echo "testing without playbook dir, builtin should return"
 ansible-doc -t filter split -v 2>&1 |grep "${GREP_OPTS[@]}" -v histerical
+
+echo "test 'sidecar' for no extension module  with .py doc"
+[ "$(ansible-doc -M ./library -l ansible.legacy |grep -v 'UNDOCUMENTED' |grep -c bogus_facts)" == "1" ]
+
+echo "test 'sidecar' for no extension module  with .yml doc"
+[ "$(ansible-doc -M ./library -l ansible.legacy |grep -v 'UNDOCUMENTED' |grep -c facts_one)" == "1" ]
diff --git a/test/sanity/ignore.txt b/test/sanity/ignore.txt
index e21d0ce1441..94c4b8c35e0 100644
--- a/test/sanity/ignore.txt
+++ b/test/sanity/ignore.txt
@@ -60,6 +60,8 @@ lib/ansible/_internal/_wrapt.py mypy-3.13!skip # vendored code
 lib/ansible/_internal/_wrapt.py pep8!skip # vendored code
 lib/ansible/_internal/_wrapt.py pylint!skip # vendored code
 lib/ansible/_internal/ansible_collections/ansible/_protomatter/README.md no-unwanted-files
+test/integration/targets/ansible-doc/library/bogus_facts shebang
+test/integration/targets/ansible-doc/library/facts_one shebang
 test/integration/targets/ansible-test-sanity/ansible_collections/ns/col/tests/integration/targets/hello/files/bad.py pylint:ansible-bad-function # ignore, required for testing
 test/integration/targets/ansible-test-sanity/ansible_collections/ns/col/tests/integration/targets/hello/files/bad.py pylint:ansible-bad-import-from # ignore, required for testing
 test/integration/targets/ansible-test-sanity/ansible_collections/ns/col/tests/integration/targets/hello/files/bad.py pylint:ansible-bad-import # ignore, required for testing