| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Mount Gaha | city | Zimbabwe | -19.12 | 32.17 | 4189 | 5662 | |
| Mount Gainor | city | Texas | United States | 30.14 | -98.14 | 1197 | |
| Mount Gallagher | city | South Carolina | United States | 34.40 | -82.19 | 830 | |
| Mount Gallows | city | North Carolina | United States | 36.42 | -76.95 | 6 | |
| Mount Gambier | city | South Australia | Australia | -37.83 | 140.78 | 275 | 26385 |
| Mount Garland | city | Virginia | United States | 37.94 | -77.81 | 298 | |
| Mount Garnet | city | Queensland | Australia | -17.68 | 145.11 | 2509 | 0 |
| Mount Garnet Airport | airport | -17.70 | 145.15 | 657 | 0 | ||
| Mount Garrett Bridge | city | Kilkenny | Ireland | 52.42 | -6.93 | 124 | 8684 |
| Mount Gate | city | Virginia | United States | 37.06 | -81.53 | 2785 | |
| Mount Gay | city | Saint Lucy | Barbados | 13.30 | -59.60 | 413 | 37403 |
| Mount Gay | city | Saint George | Grenada | 12.05 | -61.73 | 830 | 32197 |
| Mount Gay | city | West Virginia | United States | 37.84 | -82.01 | 830 | |
| Mount Gaylor | city | Arkansas | United States | 35.75 | -94.12 | 1765 | |
| Mount George | city | New South Wales | Australia | -31.89 | 152.19 | 830 | 856 |
| Mount George | city | New South Wales | Australia | -32.03 | 141.09 | 830 | 0 |
| Mount George | city | Wexford | Ireland | 52.58 | -6.42 | 249 | 1773 |
| Mount George | city | Arkansas | United States | 35.11 | -93.24 | 374 | |
| Mount Ghearthy | city | South Australia | Australia | -33.49 | 136.94 | 830 | 0 |
| Mount Gibson | city | Queensland | Australia | -15.93 | 144.83 | 1000 | 0 |
| Mount Gilead | city | Kentucky | United States | 37.17 | -85.38 | 830 | |
| Mount Gilead | city | Kentucky | United States | 38.51 | -83.70 | 859 | |
| Mount Gilead | city | North Carolina | United States | 35.21 | -80.00 | 400 | |
| Mount Gilead | city | North Carolina | United States | 36.27 | -81.91 | 2893 | |
| Mount Gilead | city | Ohio | United States | 41.18 | -83.24 | 830 | |
| Mount Gilead | city | Ohio | United States | 40.55 | -82.83 | 1095 | |
| Mount Gilead | city | South Carolina | United States | 33.58 | -79.02 | 3 | |
| Mount Gilead | city | Tennessee | United States | 35.77 | -88.54 | 830 | |
| Mount Gilead | city | Virginia | United States | 39.06 | -77.66 | 830 | |
| Mount Gilead | city | Alabama | United States | 32.09 | -85.24 | 298 | |
| Mount Gilead (historical) | city | Alabama | United States | 33.89 | -85.87 | 830 | |
| Mount Gilead (historical) | city | Tennessee | United States | 35.84 | -85.17 | 1876 | |
| Mount Gillis | city | Alabama | United States | 31.09 | -87.52 | 301 | |
| Mount Gipps | city | New South Wales | Australia | -31.63 | 141.56 | 997 | 0 |
| Mount Gipps Homestead | city | New South Wales | Australia | -31.72 | 141.78 | 830 | 0 |
| Mount Gipps Out Station | city | New South Wales | Australia | -31.72 | 141.78 | 830 | 0 |
| Mount Gordon Airport | airport | -19.77 | 139.40 | 900 | 0 | ||
| Mount Gould | city | North Carolina | United States | 36.12 | -76.76 | 55 | |
| Mount Gould Landing | city | North Carolina | United States | 36.12 | -76.74 | 3 | |
| Mount Grace | city | Westmoreland | Jamaica | 18.32 | -78.12 | 180 | 25704 |
| Mount Grace | city | Tobago | Trinidad and Tobago | 11.18 | -60.75 | 3 | 15683 |
| Mount Granby | city | Portland | Jamaica | 18.17 | -76.66 | 938 | 9387 |
| Mount Gravatt | city | Queensland | Australia | -27.53 | 153.08 | 78 | 180090 |
| Mount Greenwood | city | Illinois | United States | 41.70 | -87.71 | 830 | |
| Mount Grenfell | city | New South Wales | Australia | -31.30 | 145.33 | 921 | 0 |
| Mount Gretna | city | Pennsylvania | United States | 40.25 | -76.47 | 839 | |
| Mount Gretna Heights | city | Pennsylvania | United States | 40.25 | -76.46 | 839 | |
| Mount Guide | city | Queensland | Australia | -21.05 | 139.43 | 1233 | 0 |
| Mount Gullet | city | South Australia | Australia | -32.80 | 137.99 | 830 | 134 |
| Mount Gunson | city | South Australia | Australia | -31.45 | 137.19 | 830 | 0 |
| Mount Gunson Airport | airport | -31.46 | 137.17 | 285 | 0 | ||
| Mount Gwynne | city | New South Wales | Australia | -35.90 | 145.90 | 830 | 443 |