diff --git a/homeassistant/components/conversation/default_agent.py b/homeassistant/components/conversation/default_agent.py
index 4b056ead2c2..938889955e9 100644
--- a/homeassistant/components/conversation/default_agent.py
+++ b/homeassistant/components/conversation/default_agent.py
@@ -35,7 +35,7 @@ from hassil.recognize import (
 )
 from hassil.string_matcher import UnmatchedRangeEntity, UnmatchedTextEntity
 from hassil.trie import Trie
-from hassil.util import merge_dict
+from hassil.util import merge_dict, remove_punctuation
 from home_assistant_intents import (
     ErrorKey,
     FuzzyConfig,
@@ -327,12 +327,10 @@ class DefaultAgent(ConversationEntity):
 
         if self._exposed_names_trie is not None:
             # Filter by input string
-            text_lower = user_input.text.strip().lower()
+            text = remove_punctuation(user_input.text).strip().lower()
             slot_lists["name"] = TextSlotList(
                 name="name",
-                values=[
-                    result[2] for result in self._exposed_names_trie.find(text_lower)
-                ],
+                values=[result[2] for result in self._exposed_names_trie.find(text)],
             )
 
         start = time.monotonic()
@@ -1263,7 +1261,7 @@ class DefaultAgent(ConversationEntity):
         name_list = TextSlotList.from_tuples(exposed_entity_names, allow_template=False)
         for name_value in name_list.values:
             assert isinstance(name_value.text_in, TextChunk)
-            name_text = name_value.text_in.text.strip().lower()
+            name_text = remove_punctuation(name_value.text_in.text).strip().lower()
             self._exposed_names_trie.insert(name_text, name_value)
 
         self._slot_lists = {
diff --git a/tests/components/conversation/test_default_agent.py b/tests/components/conversation/test_default_agent.py
index 7c5e897d86c..a90cd1b55c1 100644
--- a/tests/components/conversation/test_default_agent.py
+++ b/tests/components/conversation/test_default_agent.py
@@ -231,6 +231,29 @@ async def test_conversation_agent(hass: HomeAssistant) -> None:
     )
 
 
+@pytest.mark.usefixtures("init_components")
+async def test_punctuation(hass: HomeAssistant) -> None:
+    """Test punctuation is handled properly."""
+    hass.states.async_set(
+        "light.test_light",
+        "off",
+        attributes={ATTR_FRIENDLY_NAME: "Test light"},
+    )
+    expose_entity(hass, "light.test_light", True)
+
+    calls = async_mock_service(hass, "light", "turn_on")
+    result = await conversation.async_converse(
+        hass, "Turn?? on,, test;; light!!!", None, Context(), None
+    )
+
+    assert len(calls) == 1
+    assert calls[0].data["entity_id"][0] == "light.test_light"
+    assert result.response.response_type == intent.IntentResponseType.ACTION_DONE
+    assert result.response.intent is not None
+    assert result.response.intent.slots["name"]["value"] == "test light"
+    assert result.response.intent.slots["name"]["text"] == "test light"
+
+
 async def test_expose_flag_automatically_set(
     hass: HomeAssistant,
     entity_registry: er.EntityRegistry,