| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sydenham (historical) | city | Arkansas | United States | 36.06 | -94.03 | 1669 | |
| Sydney | city | Florida | United States | 27.96 | -82.21 | 98 | |
| Sydney | city | North Dakota | United States | 46.73 | -98.77 | 1669 | |
| Sydney (historical) | city | Kentucky | United States | 37.62 | -82.36 | 830 | |
| Sydney Crossings | city | Florida | United States | 27.99 | -82.18 | 108 | |
| Sydney Town (historical) | city | California | United States | 37.80 | -122.40 | 55 | |
| Sydnor Addition | city | West Virginia | United States | 37.60 | -82.14 | 830 | |
| Sydnorsville | city | Virginia | United States | 36.89 | -79.87 | 1095 |