diff --git a/homeassistant/components/abode/config_flow.py b/homeassistant/components/abode/config_flow.py
index d2e321f566eb..0be9749ca868 100644
--- a/homeassistant/components/abode/config_flow.py
+++ b/homeassistant/components/abode/config_flow.py
@@ -13,7 +13,7 @@ from jaraco.abode.helpers.errors import MFA_CODE_REQUIRED
 from requests.exceptions import ConnectTimeout, HTTPError
 import voluptuous as vol
 
-from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
+from homeassistant.config_entries import SOURCE_REAUTH, ConfigFlow, ConfigFlowResult
 from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
 
 from .const import CONF_POLLING, DOMAIN, LOGGER
@@ -99,6 +99,12 @@ class AbodeFlowHandler(ConfigFlow, domain=DOMAIN):
         }
         existing_entry = await self.async_set_unique_id(self._username)
 
+        if self.source == SOURCE_REAUTH:
+            self._abort_if_unique_id_mismatch(reason="wrong_account")
+            return self.async_update_reload_and_abort(
+                self._get_reauth_entry(), data=config_data
+            )
+
         if existing_entry:
             return self.async_update_reload_and_abort(existing_entry, data=config_data)
 
diff --git a/homeassistant/components/abode/strings.json b/homeassistant/components/abode/strings.json
index c706a0b91aa6..39514b9e721a 100644
--- a/homeassistant/components/abode/strings.json
+++ b/homeassistant/components/abode/strings.json
@@ -1,7 +1,8 @@
 {
   "config": {
     "abort": {
-      "reauth_successful": "[%key:common::config_flow::abort::reauth_successful%]"
+      "reauth_successful": "[%key:common::config_flow::abort::reauth_successful%]",
+      "wrong_account": "You must authenticate with the same Abode account that was originally configured."
     },
     "error": {
       "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
diff --git a/tests/components/abode/test_config_flow.py b/tests/components/abode/test_config_flow.py
index 2abed387566f..7e58c74aa5c5 100644
--- a/tests/components/abode/test_config_flow.py
+++ b/tests/components/abode/test_config_flow.py
@@ -154,6 +154,33 @@ async def test_step_mfa(hass: HomeAssistant) -> None:
     }
 
 
+async def test_step_reauth_with_a_different_account(hass: HomeAssistant) -> None:
+    """Test reauthenticating with an account other than the configured one."""
+    entry = MockConfigEntry(
+        domain=DOMAIN,
+        unique_id="user@email.com",
+        data={CONF_USERNAME: "user@email.com", CONF_PASSWORD: "password"},
+    )
+    entry.add_to_hass(hass)
+
+    result = await entry.start_reauth_flow(hass)
+
+    with patch("homeassistant.components.abode.config_flow.Abode"):
+        result = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            user_input={
+                CONF_USERNAME: "other@email.com",
+                CONF_PASSWORD: "password",
+            },
+        )
+
+    assert result["type"] is FlowResultType.ABORT
+    assert result["reason"] == "wrong_account"
+
+    assert len(hass.config_entries.async_entries()) == 1
+    assert entry.data[CONF_USERNAME] == "user@email.com"
+
+
 async def test_step_reauth(hass: HomeAssistant) -> None:
     """Test the reauth flow."""
     entry = MockConfigEntry(