J
- Jacksdale
- Jackstown
- Jackton
- Jacobstow
- Jacobstowe
- Jacob's Well, Surrey
- Jameston
- Jamestown
- Jamestown
- Jamestown
- Janetstown
- Janetstown
- Jarrow
- Jarvis Brook
- Jawcraig
- Jaywick
- Jedburgh
- Jeffreyston
- Jemimaville
- Jerrettspass
- Jersay
- Jervaulx
- Jesmond
- Jevington
- Jodrell Bank, Cheshire East
- Johnby
- John O' Gaunt
- John 'o' Groats
- Johns Cross
- Johnshaven
- Johnston
- Johnstone
- Johnstonebridge
- Johnstone Castle
- Johnstown
- Johnstown
- Joppa
- Jordan Hill
- Jordans, Buckinghamshire
- Jordanston
- Jordanston
- Jordanstown, Newtownabbey
- Jump
- Jumpers Common
- Juniper
- Juniper Green, City of Edinburgh
- Juniper Hill
- Jurys Gap
- Justicetown
- Justinhaugh