diff --git a/homeassistant/components/workday/config_flow.py b/homeassistant/components/workday/config_flow.py
index 895c7cd50e2..b0b1e9fcc02 100644
--- a/homeassistant/components/workday/config_flow.py
+++ b/homeassistant/components/workday/config_flow.py
@@ -26,6 +26,7 @@ from homeassistant.helpers.selector import (
     NumberSelector,
     NumberSelectorConfig,
     NumberSelectorMode,
+    SelectOptionDict,
     SelectSelector,
     SelectSelectorConfig,
     SelectSelectorMode,
@@ -79,10 +80,19 @@ def add_province_and_language_to_schema(
         }
 
     if provinces := all_countries.get(country):
+        if _country.subdivisions_aliases and (
+            subdiv_aliases := _country.get_subdivision_aliases()
+        ):
+            province_options: list[Any] = [
+                SelectOptionDict(value=k, label=", ".join(v))
+                for k, v in subdiv_aliases.items()
+            ]
+        else:
+            province_options = provinces
         province_schema = {
             vol.Optional(CONF_PROVINCE): SelectSelector(
                 SelectSelectorConfig(
-                    options=provinces,
+                    options=province_options,
                     mode=SelectSelectorMode.DROPDOWN,
                     translation_key=CONF_PROVINCE,
                 )
diff --git a/tests/components/workday/test_config_flow.py b/tests/components/workday/test_config_flow.py
index 51d4b899d25..c05da654f96 100644
--- a/tests/components/workday/test_config_flow.py
+++ b/tests/components/workday/test_config_flow.py
@@ -55,7 +55,7 @@ async def test_form(hass: HomeAssistant) -> None:
             CONF_WORKDAYS: DEFAULT_WORKDAYS,
             CONF_ADD_HOLIDAYS: [],
             CONF_REMOVE_HOLIDAYS: [],
-            CONF_LANGUAGE: "de",
+            CONF_LANGUAGE: "en_US",
         },
     )
     await hass.async_block_till_done()
@@ -70,7 +70,48 @@ async def test_form(hass: HomeAssistant) -> None:
         "workdays": ["mon", "tue", "wed", "thu", "fri"],
         "add_holidays": [],
         "remove_holidays": [],
-        "language": "de",
+        "language": "en_US",
+    }
+
+
+async def test_form_province_no_alias(hass: HomeAssistant) -> None:
+    """Test we get the forms."""
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+    assert result["type"] is FlowResultType.FORM
+
+    result2 = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        {
+            CONF_NAME: "Workday Sensor",
+            CONF_COUNTRY: "US",
+        },
+    )
+    await hass.async_block_till_done()
+    result3 = await hass.config_entries.flow.async_configure(
+        result2["flow_id"],
+        {
+            CONF_EXCLUDES: DEFAULT_EXCLUDES,
+            CONF_OFFSET: DEFAULT_OFFSET,
+            CONF_WORKDAYS: DEFAULT_WORKDAYS,
+            CONF_ADD_HOLIDAYS: [],
+            CONF_REMOVE_HOLIDAYS: [],
+        },
+    )
+    await hass.async_block_till_done()
+
+    assert result3["type"] is FlowResultType.CREATE_ENTRY
+    assert result3["title"] == "Workday Sensor"
+    assert result3["options"] == {
+        "name": "Workday Sensor",
+        "country": "US",
+        "excludes": ["sat", "sun", "holiday"],
+        "days_offset": 0,
+        "workdays": ["mon", "tue", "wed", "thu", "fri"],
+        "add_holidays": [],
+        "remove_holidays": [],
     }
 
 
diff --git a/tests/components/workday/test_init.py b/tests/components/workday/test_init.py
index 1e0c9cbebc6..2735175b49b 100644
--- a/tests/components/workday/test_init.py
+++ b/tests/components/workday/test_init.py
@@ -5,6 +5,7 @@ from __future__ import annotations
 from datetime import datetime
 
 from freezegun.api import FrozenDateTimeFactory
+from holidays.utils import country_holidays
 
 from homeassistant.config_entries import ConfigEntryState
 from homeassistant.core import HomeAssistant
@@ -50,3 +51,18 @@ async def test_update_options(
     assert entry_check.state is ConfigEntryState.LOADED
     state = hass.states.get("binary_sensor.workday_sensor")
     assert state.state == "off"
+
+
+async def test_workday_subdiv_aliases() -> None:
+    """Test subdiv aliases in holidays library."""
+
+    country = country_holidays(
+        country="FR",
+        years=2025,
+    )
+    subdiv_aliases = country.get_subdivision_aliases()
+    assert subdiv_aliases["GES"] == [  # codespell:ignore
+        "Alsace",
+        "Champagne-Ardenne",
+        "Lorraine",
+    ]