diff --git a/homeassistant/components/samsungtv/config_flow.py b/homeassistant/components/samsungtv/config_flow.py
index 099f0afbae8..d7ad62bdf7a 100644
--- a/homeassistant/components/samsungtv/config_flow.py
+++ b/homeassistant/components/samsungtv/config_flow.py
@@ -458,7 +458,7 @@ class SamsungTVConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
         )
         if hostname := urlparse(discovery_info.ssdp_location or "").hostname:
             self._host = hostname
-        self._manufacturer = discovery_info.upnp[ssdp.ATTR_UPNP_MANUFACTURER]
+        self._manufacturer = discovery_info.upnp.get(ssdp.ATTR_UPNP_MANUFACTURER)
         self._abort_if_manufacturer_is_not_samsung()
 
         # Set defaults, in case they cannot be extracted from device_info
diff --git a/tests/components/samsungtv/test_config_flow.py b/tests/components/samsungtv/test_config_flow.py
index 0b49a064a19..30bb1052702 100644
--- a/tests/components/samsungtv/test_config_flow.py
+++ b/tests/components/samsungtv/test_config_flow.py
@@ -100,6 +100,15 @@ MOCK_SSDP_DATA = ssdp.SsdpServiceInfo(
         ATTR_UPNP_UDN: "uuid:0d1cef00-00dc-1000-9c80-4844f7b172de",
     },
 )
+MOCK_SSDP_DATA_NO_MANUFACTURER = ssdp.SsdpServiceInfo(
+    ssdp_usn="mock_usn",
+    ssdp_st="mock_st",
+    ssdp_location="https://fake_host:12345/test",
+    upnp={
+        ATTR_UPNP_FRIENDLY_NAME: "[TV] fake_name",
+        ATTR_UPNP_UDN: "uuid:0d1cef00-00dc-1000-9c80-4844f7b172de",
+    },
+)
 
 MOCK_SSDP_DATA_NOPREFIX = ssdp.SsdpServiceInfo(
     ssdp_usn="mock_usn",
@@ -521,6 +530,18 @@ async def test_ssdp(hass: HomeAssistant) -> None:
     assert result["result"].unique_id == "0d1cef00-00dc-1000-9c80-4844f7b172de"
 
 
+@pytest.mark.usefixtures("remote", "rest_api_failing")
+async def test_ssdp_no_manufacturer(hass: HomeAssistant) -> None:
+    """Test starting a flow from discovery when the manufacturer data is missing."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={"source": config_entries.SOURCE_SSDP},
+        data=MOCK_SSDP_DATA_NO_MANUFACTURER,
+    )
+    assert result["type"] == "abort"
+    assert result["reason"] == "not_supported"
+
+
 @pytest.mark.parametrize(
     "data", [MOCK_SSDP_DATA_MAIN_TV_AGENT_ST, MOCK_SSDP_DATA_RENDERING_CONTROL_ST]
 )