| Morningside Community Development District, FL (CDD) |
| Moro, AR (Town) |
| Moro, ME (Plantation) |
| Moro, OR (City) |
| Moro Township, IL (Township) |
| Morocco, IN (Town) |
| Moroni, UT (City) |
| Morral, OH (Village) |
| Morrice, MI (Village) |
| Morrill, NE (Village) |
| Morrill, KS (City) |
| Morrill, KS (Township) |
| Morrill, ME (Town) |
| Morrill, MN (Township) |
| Morrill County, NE (County) |
