| Jakarta Raya (Indonesia) |
Jakarta |
| Jalisco (Mexico) |
Guadalajara |
| Jamaica |
Kingston |
| Jammu and Kashmir (India) |
Srinagar (in summer) & Jammu (in winter) |
| Jamtland (Sweden) |
Ostersund |
| Japan |
Tokyo |
| Jawar Barat (Indonesia) |
Bandung |
| Jawar Tengah (Indonesia) |
Semarang |
| Jawar Timur (Indonesia) |
Surabaya |
| Jersey |
St Helier |
| Jiangsu (aka Kiangsu) (China) |
Nanjing (aka Nanking) |
| Jiangxi (aka Kiangsi) (China) |
Nanchang |
| Jilin (aka Kirin) (China) |
Changchun |
| Johor (Malaysia) |
Johor Baharu |
| Jordan |
Amman |
| Jubbada Dhexe (Somalia) |
Bu'aale |
| Jubbada Hoose (Somalia) |
Chisimayu (Kismaayo) |
| Jujuy (Argentina) |
San Salvador |
| Junin (Peru) |
Huancayo |
| Junquli (Jongley) (Sudan) |
Bor |
| Jura (France) |
Lons-le-Saunier |
| Jura (Swiss canton) |
Deldmont |
