| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Jakopas | city | Ahvenanmaan Laani | Finland | 60.0908333 | 20.4961111 | 16 | 111 |
| Jans | city | Ahvenanmaan Laani | Finland | 60.1894444 | 19.9397222 | 19 | 1967 |
| Janses | city | Ahvenanmaan Laani | Finland | 60.135 | 19.8586111 | 9 | 1404 |
| Janses | city | Ahvenanmaan Laani | Finland | 60.1244444 | 20.077778 | 0 | 665 |
| Jattbole | city | Ahvenanmaan Laani | Finland | 60.1333333 | 19.9833333 | 95 | 5727 |
| Johannelund | city | Ahvenanmaan Laani | Finland | 60.2005556 | 20.1480556 | 32 | 316 |
| Jomala | city | Ahvenanmaan Laani | Finland | 60.15 | 19.9666667 | 98 | 5727 |
| Jomala | city | Ahvenanmaan Laani | Finland | 60.1833333 | 19.9833333 | 6 | 1575 |
| Jomalaby | city | Ahvenanmaan Laani | Finland | 60.1833333 | 19.9833333 | 6 | 1575 |
| Jomalby | city | Ahvenanmaan Laani | Finland | 60.1833333 | 19.9833333 | 6 | 1575 |
| Jonases | city | Ahvenanmaan Laani | Finland | 60.12 | 20.066667 | 0 | 665 |
| Julle | city | Ahvenanmaan Laani | Finland | 60.1286111 | 19.8975 | 3 | 5552 |
| Jurmo | city | Ahvenanmaan Laani | Finland | 60.5333333 | 21.0833333 | 3 | 143 |
| Jyddo | city | Ahvenanmaan Laani | Finland | 60.0833333 | 20.5333333 | 0 | 231 |
| Jyddö | city | Ahvenanmaan Laani | Finland | 60.0833333 | 20.5333333 | 0 | 231 |
| Jättböle | city | Ahvenanmaan Laani | Finland | 60.1333333 | 19.9833333 | 95 | 5727 |
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