| Ardencroft, DE (Village) |
| Ardenhurst, MN (Township) |
| Ardentown, DE (Village) |
| Ardmore, TN (City) |
| Ardmore, AL (Town) |
| Ardmore, OK (City) |
| Ardoch, ND (Township) |
| Ardoch, ND (City) |
| Ardsley, NY (Village) |
| Aredale, IA (City) |
| Arena, MN (Township) |
| Arena Town, WI (Town) |
| Arena Village, WI (Village) |
| Arenac County, MI (County) |
| Arenac Township, MI (Township) |
