| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Jablonica | city | Trnavsky | Slovakia | 48.61 | 17.42 | 830 | 4668 |
| Jablánc | city | Trnavsky | Slovakia | 48.61 | 17.42 | 830 | 4668 |
| Jahodná | city | Trnavsky | Slovakia | 48.05 | 17.71 | 360 | 6931 |
| Jalsove | city | Trnavsky | Slovakia | 48.51 | 17.83 | 830 | 12644 |
| Janecek | city | Trnavsky | Slovakia | 48.75 | 17.42 | 1036 | 3992 |
| Janiky | city | Trnavsky | Slovakia | 48.14 | 17.40 | 416 | 8456 |
| Janok | city | Trnavsky | Slovakia | 48.14 | 17.40 | 416 | 8456 |
| Janok,Jánok | city | Trnavsky | Slovakia | 48.14 | 17.40 | 416 | 8456 |
| Janoshaza | city | Trnavsky | Slovakia | 48.20 | 17.52 | 413 | 6701 |
| Janoshaza | city | Trnavsky | Slovakia | 48.18 | 17.53 | 830 | 7614 |
| Janosikovo na Ostrove | city | Trnavsky | Slovakia | 47.91 | 17.76 | 341 | 7764 |
| Jaslovce | city | Trnavsky | Slovakia | 48.47 | 17.65 | 830 | 7308 |
| Jaslovské Bohunice | city | Trnavsky | Slovakia | 48.48 | 17.65 | 830 | 7338 |
| Jastrabie Kračany | city | Trnavsky | Slovakia | 48.00 | 17.55 | 380 | 9754 |
| Jazerny Narazd | city | Trnavsky | Slovakia | 48.17 | 17.79 | 380 | 11473 |
| Jazerny Narazd,Jazerný Ňáražd,Tos-Nyarasd,Tos-Nyárasd | city | Trnavsky | Slovakia | 48.17 | 17.79 | 380 | 11473 |
| Jazov | city | Trnavsky | Slovakia | 47.95 | 17.78 | 357 | 6353 |
| Jelene Jamy | city | Trnavsky | Slovakia | 48.61 | 17.96 | 2024 | 2891 |
| Jelenova | city | Trnavsky | Slovakia | 48.44 | 17.89 | 830 | 11021 |
| Jelka | city | Trnavsky | Slovakia | 48.15 | 17.51 | 396 | 8324 |
| Joka,Jóka | city | Trnavsky | Slovakia | 48.15 | 17.51 | 396 | 8324 |
| Jozef | city | Trnavsky | Slovakia | 48.07 | 17.37 | 830 | 7366 |
| Jozefov | city | Trnavsky | Slovakia | 48.56 | 17.67 | 830 | 6682 |
| Jozi | city | Trnavsky | Slovakia | 48.29 | 17.56 | 830 | 8347 |
| Jurová | city | Trnavsky | Slovakia | 47.93 | 17.52 | 354 | 4986 |
| Jákérom | city | Trnavsky | Slovakia | 47.85 | 17.67 | 344 | 4621 |
| Jánostelek Majer | city | Trnavsky | Slovakia | 47.95 | 17.80 | 347 | 6498 |
| Jánovce | city | Trnavsky | Slovakia | 48.18 | 17.53 | 830 | 7614 |
| Jányok | city | Trnavsky | Slovakia | 48.14 | 17.40 | 416 | 8456 |
| Jászló | city | Trnavsky | Slovakia | 48.48 | 17.65 | 830 | 7338 |
| Jóka | city | Trnavsky | Slovakia | 48.15 | 17.51 | 396 | 8324 |