Mai hivatalos név
| Ország | Névváltozatok
|
| Jaanilinn ld. Ivangorod | | |
| Jablanica / Jaблaницa | MC | Jablanica / Яблaницa [BG 1878]; Jablanica / Jaблaницa [SB 1913-1941]; Jablanicë, Jablanica [AL 1941-1944] |
| Jablanicë ld. Jablanica | | |
| Jablonau ld. Jabluniv | | |
| Jablonec nad Nisou | CS | Gablonz an der Neisse [AU -1918, NM 1938-1945] |
| Jablonka ld. Jabłonka Orawska | | |
| Jablonné v Podještědí | CS | †Německé Jablonné; Deutsch-Gabel [AU -1918, NM 1938-1945] |
| Jablonov ld. Jabluniv | | |
| Jablonow ld. Jabluniv | | |
| Jabluniv / Яблунiв | UKR | Jabłonów [LEN -1772, 1919-1939]; Jablonow, Jablonau [AU 1772-1918, NM 1941-1944]; Jablonov / Яблунoв [OR 1939-1991] |
| Jablunkau ld. Jablunkov | | |
| Jablunkov | CS | Jablunkau [AU -1918, NM 1939-1945]; Jabłonków [LEN 1918-19, 1938-1939] |
| Jabłonka Orawska | LEN | Jablonka [MA -1918]; Jablonka [SLK 1939-1945] |
| Jabłonków ld. Jablunkov | | |
| Jabłonów ld. Jabluniv | | |
| Jaca ld. Zsáka | | |
| Jáchymov | CS | †Svatý Jáchymov; Sankt-Joachimsthal [AU -1918, NM 1938-45] |
| Jacobstadt ld. Jēkabpils | | |
| Jägerndorf ld. Krnov | | |
| Jagniątków53 | LEN | Agnetendorf [NM -1945] |
| Jagodin ld. Jahodyn | | |
| Jagodina / Ягoдинa | BG | †Balaban / Бaлaбaн; Balaban [TR -1885, 1886-1913] |
| Jagodina ld. Svetozarevo (Ju.) | | |
| Jagodnjak | HR | Kácsfalu [MA -1918, 1941-1945] |
| Jagodzin ld. Jahodyn | | |
| Jahodyn / Ягoдин | UKR | Jagodzin [LEN -1772, 1919-1939]; Jagodin / Ягoдин [OR 1939-1991] |
| Jajce / Jajцe | BH | Yayçe [TR -1878] |
| Jajurjala ld. Baryševo | | |
| Ják | MA | |
| Jakobstad ld. Pietarsaari / Jakobstad | | |
