| Williamsport, KS (Township) |
| Williamston, SC (Town) |
| Williamston, NC (Town) |
| Williamston, MI (City) |
| Williamstown, PA (Borough) |
| Williamstown, WI (Town) |
| Williamstown, WV (City) |
| Williamstown, MA (Town) |
| Williamstown, KY (City) |
| Williamstown, VT (Town) |
| Williamstown, NY (Town) |
| Williamstown Township, MI (Township) |
| Williamsville, IL (Village) |
| Williamsville, NY (Village) |
| Williamsville, MO (City) |
