diff --git a/homeassistant/components/geocaching/__init__.py b/homeassistant/components/geocaching/__init__.py
index 144249ac42f..be9e3c29b93 100644
--- a/homeassistant/components/geocaching/__init__.py
+++ b/homeassistant/components/geocaching/__init__.py
@@ -2,11 +2,14 @@
 
 from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
+from homeassistant.exceptions import ConfigEntryNotReady
 from homeassistant.helpers.config_entry_oauth2_flow import (
+    ImplementationUnavailableError,
     OAuth2Session,
     async_get_config_entry_implementation,
 )
 
+from .const import DOMAIN
 from .coordinator import GeocachingConfigEntry, GeocachingDataUpdateCoordinator
 
 PLATFORMS = [Platform.SENSOR]
@@ -14,7 +17,13 @@ PLATFORMS = [Platform.SENSOR]
 
 async def async_setup_entry(hass: HomeAssistant, entry: GeocachingConfigEntry) -> bool:
     """Set up Geocaching from a config entry."""
-    implementation = await async_get_config_entry_implementation(hass, entry)
+    try:
+        implementation = await async_get_config_entry_implementation(hass, entry)
+    except ImplementationUnavailableError as err:
+        raise ConfigEntryNotReady(
+            translation_domain=DOMAIN,
+            translation_key="oauth2_implementation_unavailable",
+        ) from err
 
     oauth_session = OAuth2Session(hass, entry, implementation)
     coordinator = GeocachingDataUpdateCoordinator(
diff --git a/homeassistant/components/geocaching/strings.json b/homeassistant/components/geocaching/strings.json
index 4c31566e7b4..896a239fb2c 100644
--- a/homeassistant/components/geocaching/strings.json
+++ b/homeassistant/components/geocaching/strings.json
@@ -65,5 +65,10 @@
         "unit_of_measurement": "souvenirs"
       }
     }
+  },
+  "exceptions": {
+    "oauth2_implementation_unavailable": {
+      "message": "[%key:common::exceptions::oauth2_implementation_unavailable::message%]"
+    }
   }
 }
diff --git a/tests/components/geocaching/test_init.py b/tests/components/geocaching/test_init.py
new file mode 100644
index 00000000000..97d6753e11a
--- /dev/null
+++ b/tests/components/geocaching/test_init.py
@@ -0,0 +1,28 @@
+"""Tests for the Geocaching integration."""
+
+from unittest.mock import patch
+
+from homeassistant.config_entries import ConfigEntryState
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.config_entry_oauth2_flow import (
+    ImplementationUnavailableError,
+)
+
+from tests.common import MockConfigEntry
+
+
+async def test_oauth_implementation_not_available(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+) -> None:
+    """Test that unavailable OAuth implementation raises ConfigEntryNotReady."""
+    mock_config_entry.add_to_hass(hass)
+
+    with patch(
+        "homeassistant.components.geocaching.async_get_config_entry_implementation",
+        side_effect=ImplementationUnavailableError,
+    ):
+        await hass.config_entries.async_setup(mock_config_entry.entry_id)
+        await hass.async_block_till_done()
+
+    assert mock_config_entry.state is ConfigEntryState.SETUP_RETRY