| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Maid Marion | city | Maryland | United States | 39.03 | -76.54 | 98 | |
| Maidens Fancy Manor | city | Maryland | United States | 39.11 | -76.90 | 347 | |
| Mainbrace | city | Maryland | United States | 38.98 | -76.15 | 16 | |
| Mairs Mill | city | Maryland | United States | 39.71 | -77.22 | 830 |