| Seneca County, NY (County) |
| Seneca County, OH (County) |
| Seneca Falls, NY (Town) |
| Seneca Falls, NY (Village) |
| Seneca Gardens, KY (City) |
| Seneca Town, WI (Town) |
| Seneca Town, WI (Town) |
| Seneca Town, WI (Town) |
| Seneca Town, WI (Town) |
| Seneca Township, MI (Township) |
| Seneca Township, OH (Township) |
| Seneca Township, OH (Township) |
| Seneca Township, OH (Township) |
| Seneca Township, IL (Township) |
| Seneca Township, IA (Township) |
