| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Glen Mar Park | city | Maryland | United States | 38.96 | -77.12 | 196 | |
| Glen Martin | city | California | United States | 34.15 | -116.99 | 5889 | |
| Glen Mary | city | Alabama | United States | 34.12 | -87.62 | 830 | |
| Glen Mary Heights | city | Maryland | United States | 39.61 | -75.82 | 49 | |
| Glen Mawr | city | Pennsylvania | United States | 41.31 | -76.65 | 830 | |
| Glen Maye | city | New South Wales | Australia | -33.00 | 149.56 | 2509 | 149 |
| Glen Maye | city | Man, Isle of | 54.18 | -4.70 | 830 | 3446 | |
| Glen Mays | city | KwaZulu-Natal | South Africa | -30.10 | 29.98 | 4189 | 74 |
| Glen Meade | city | North Carolina | United States | 34.20 | -77.91 | 29 | |
| Glen Meadows Mobile Home Park | city | Louisiana | United States | 30.21 | -93.59 | 13 | |
| Glen Mhor | city | Saint Anthony | Montserrat | 16.70 | -62.20 | 1105 | 2501 |
| Glen Michel | city | Northern Cape | South Africa | -29.07 | 22.84 | 4189 | 0 |
| Glen Mills | city | Massachusetts | United States | 42.74 | -70.90 | 49 | |
| Glen Mills | city | Pennsylvania | United States | 39.92 | -75.49 | 265 | |
| Glen Moan | city | New South Wales | Australia | -31.75 | 150.28 | 1669 | 149 |
| Glen Mokopo | city | Free State | South Africa | -29.48 | 27.09 | 5029 | 432 |
| Glen Mona | city | Victoria | Australia | -38.47 | 146.83 | 9 | 298 |
| Glen Montagu | city | Matabeleland South | Zimbabwe | -20.30 | 28.71 | 4504 | 2240 |
| Glen Moore | city | Pennsylvania | United States | 40.06 | -76.31 | 344 | |
| Glen More | city | Limpopo | South Africa | -25.02 | 28.55 | 3349 | 1196 |
| Glen Morgan | city | West Virginia | United States | 37.76 | -81.16 | 2509 | |
| Glen Morris | city | Maryland | United States | 39.49 | -76.83 | 830 | |
| Glen Morrison | city | New South Wales | Australia | -31.20 | 151.53 | 2552 | 0 |
| Glen Muir | city | Eastern Cape | South Africa | -32.88 | 28.10 | 0 | 1931 |
| Glen Murray | city | New Zealand | -37.45 | 174.97 | 190 | 811 |