diff --git a/sphinx/ext/napoleon/docstring.py b/sphinx/ext/napoleon/docstring.py
index 2aad7102f..ee4df271c 100644
--- a/sphinx/ext/napoleon/docstring.py
+++ b/sphinx/ext/napoleon/docstring.py
@@ -50,7 +50,7 @@ _token_regex = re.compile(
     r'|"(?:\\"|[^"])*"'
     r"|'(?:\\'|[^'])*')"
 )
-_singletons = ("None", "True", "False", "...", "Ellipsis")
+_singletons = ("None", "True", "False", "Ellipsis")
 
 
 class GoogleDocstring:
@@ -924,6 +924,9 @@ def _convert_numpy_type_spec(_type: str, location: str = None, translations: dic
         # use :class: (the default) only if obj is not a standard singleton
         if translation in _singletons and default_translation == ":class:`%s`":
             default_translation = ":obj:`%s`"
+        elif translation == "..." and default_translation == ":class:`%s`":
+            # allow referencing the builtin ...
+            default_translation = ":obj:`%s <Ellipsis>`"
 
         if _xref_regex.match(translation) is None:
             translation = default_translation % translation
diff --git a/tests/test_ext_napoleon_docstring.py b/tests/test_ext_napoleon_docstring.py
index c99aae867..b5c079314 100644
--- a/tests/test_ext_napoleon_docstring.py
+++ b/tests/test_ext_napoleon_docstring.py
@@ -2128,7 +2128,7 @@ definition_after_normal_text : int
             ----------
             param1 : DataFrame
                 the data to work on
-            param2 : int or float or None or ..., optional
+            param2 : int or float or None, optional
                 a parameter with different types
             param3 : dict-like, optional
                 a optional mapping
@@ -2140,12 +2140,14 @@ definition_after_normal_text : int
                 different default format
             param7 : mapping of hashable to str, optional
                 a optional mapping
+            param8 : ... or Ellipsis
+                ellipsis
         """)
         expected = dedent("""\
             :param param1: the data to work on
             :type param1: DataFrame
             :param param2: a parameter with different types
-            :type param2: :class:`int` or :class:`float` or :obj:`None` or :obj:`...`, *optional*
+            :type param2: :class:`int` or :class:`float` or :obj:`None`, *optional*
             :param param3: a optional mapping
             :type param3: :term:`dict-like <mapping>`, *optional*
             :param param4: a optional parameter with different types
@@ -2156,6 +2158,8 @@ definition_after_normal_text : int
             :type param6: :class:`int`, *default* :obj:`None`
             :param param7: a optional mapping
             :type param7: :term:`mapping` of :term:`hashable` to :class:`str`, *optional*
+            :param param8: ellipsis
+            :type param8: :obj:`... <Ellipsis>` or :obj:`Ellipsis`
         """)
         translations = {
             "dict-like": ":term:`dict-like <mapping>`",