There are at least 6 cities named Portsmouth in the entire world. The following map and table contain general information about these cities.
| # | Country | Region | City | Coordinates |
|---|---|---|---|---|
| 1 | United States | Ohio | Portsmouth | 38.732, -82.998 |
| 2 | United States | Virginia | Portsmouth | 36.835, -76.298 |
| 3 | United States | Rhode Island | Portsmouth | 41.602, -71.25 |
| 4 | United States | New Hampshire | Portsmouth | 43.077, -70.758 |
| 5 | Dominica | Saint John Parish | Portsmouth | 15.583, -61.456 |
| 6 | United Kingdom | England | Portsmouth | 50.799, -1.091 |