diff --git a/changelogs/fragments/85711-handing-for-collection-without-mainifests.yml b/changelogs/fragments/85711-handing-for-collection-without-mainifests.yml
new file mode 100644
index 00000000000..82cd66898f7
--- /dev/null
+++ b/changelogs/fragments/85711-handing-for-collection-without-mainifests.yml
@@ -0,0 +1,3 @@
+bugfixes:
+- >-
+  ansible-doc  - fix in the ansible-doc process error output _protomatter related Warning log(https://github.com/ansible/ansible/pull/85711).
diff --git a/lib/ansible/galaxy/dependency_resolution/dataclasses.py b/lib/ansible/galaxy/dependency_resolution/dataclasses.py
index d9b1a3a84c7..ba8ff8f5920 100644
--- a/lib/ansible/galaxy/dependency_resolution/dataclasses.py
+++ b/lib/ansible/galaxy/dependency_resolution/dataclasses.py
@@ -25,7 +25,7 @@ if t.TYPE_CHECKING:
         'Candidate', 'Requirement',
         '_ComputedReqKindsMixin',
     )
-
+import ansible
 from ansible.errors import AnsibleError, AnsibleAssertionError
 from ansible.galaxy.api import GalaxyAPI
 from ansible.module_utils.common.text.converters import to_bytes, to_native, to_text
@@ -40,6 +40,7 @@ _ALLOW_CONCRETE_POINTER_IN_SOURCE = False  # NOTE: This is a feature flag
 _GALAXY_YAML = b'galaxy.yml'
 _MANIFEST_JSON = b'MANIFEST.json'
 _SOURCE_METADATA_FILE = b'GALAXY.yml'
+_ANSIBLE_PACKAGE_PATH = pathlib.Path(ansible.__file__).parent
 
 display = Display()
 
@@ -236,6 +237,12 @@ class _ComputedReqKindsMixin:
             dir_path = dir_path.rstrip(to_bytes(os.path.sep))
         if not _is_collection_dir(dir_path):
             dir_pathlib = pathlib.Path(to_text(dir_path))
+
+            # special handling for bundled collections without manifests, e.g., ansible._protomatter
+            if dir_pathlib.is_relative_to(_ANSIBLE_PACKAGE_PATH):
+                req_name = f'{dir_pathlib.parent.name}.{dir_pathlib.name}'
+                return cls(req_name, ansible.release.__version__, dir_path, 'dir', None)
+
             display.warning(
                 u"Collection at '{path!s}' does not have a {manifest_json!s} "
                 u'file, nor has it {galaxy_yml!s}: cannot detect version.'.