All cities and villages in UK
- Isle of Whithorn
- Isleornsay
- Isleworth
- Islington
- Islip
- Islip
- Itchen Abbas
- Itchingfield
- Itteringham
- Ivegill
- Iver
- Ivinghoe
- Ivybridge
- Ivychurch
- Iwade
- Iwerne Courtney
- Iwerne Minster
- Ixworth
- Ixworth Thorpe
- Jacobstow
- Jacobstowe
- Jamestown
- Jamestown
- Janetstown
- Jarrow
- Jedburgh
- Jeffreyston
- Jemimaville
- Jerrettspuss
- Jesmond
- Jevington
- Jodrell Bank
- Johnby
- Johnshaven
- Johnston
- Johnstone
- Johnstonebridge
- Jonesborough
- Jordans
- Jordanston
- Jordanstown
- Juniper Green
- Kames
- Katesbridge
- Kea
- Keadby
- Keady
- Kearney
- Kearsley
- Kearsney
- Kearvaig
- Keddington
- Kedington
- Kedleston
- Keelby
- Keele
- Keeran
- Keevil
- Kegworth
- Keig
- Keighley
- Keillmore
- Keilour
- Keisby
- Keisley
- Keiss
- Keith
- Keithan
- Kelbrook
- Kelby
- Keld
- Keldhead
- Keld Houses
- Kelham
- Kellas
- Kelling
- Kells
- Kelly
- Kelmarsh
- Kelsale
- Kelsall
- Kelsall Hill
- Kelshall
- Kelso
- Kelstern
- Kelston
- Kelton
- Kelty
- Kelvedon
- Kelvedon Hatch
- Kemble
- Kemeys Inferior
- Kemnay
- Kempley
- Kempsey
- Kempsford
- Kempston
- Kemsing
- Kencot
- Kendal
- Kenfig
- Kenfig Hill
- Kenilworth
- Kenley
- Kenley
- Kenmore
- Kenmore
- Kenmore
- Kenn
- Kennerleigh
- Kennet
- Kennett
- Kenninghall
- Kennington
- Kennoway
- Kensington
- Kensworth
- Kentallen
- Kentchurch
- Kentford
- Kentisbeare
- Kentisbury
- Kentmere
- Kenton
- Kenton
- Kenton
- Kenton
- Kentra
- Kents Bank
- Kenwyn
- Kenyon
- Keoldale
- Kepculloch
- Kepwick
- Keresley
- Kerne Bridge
- Kerry
- Kerrysdale
- Kersall
- Kersey
- Kershopefoot
- Kesh
- Kessingland
- Kessock
- Keswick
- Keswick
- Ketley
- Kettering
- Ketteringham
- Kettleburgh
- Kettlestone
- Kettlethorpe
- Kettletoft
- Kettlewell
- Ketton
- Kew
- Kew Gardens
- Kew Green
- Kexby
- Keyingham
- Keynsham
- Keysoe
- Keyston
- Key Street
- Kibworth Harcourt
- Kidbrooke
- Kiddemore Green
- Kidderminster
- Kiddington
- Kidlington
- Kidsgrove
- Kidwelly
- Kilbarchan
- Kilbirnie
- Kilbrandon
- Kilbride
- Kilbride
- Kilburn
- Kilburn
- Kilby
- Kilchattan
- Kilchattan
- Kilchenzie
- Kilcheran
- Kilchiaran
- Kilchoan
- Kilchoman
- Kilchrenan
- Kilclief
- Kilconquhar
- Kilcoo
- Kilcreggan
- Kildale
- Kildalloig
- Kildonan
- Kildonan
- Kildonnan
- Kildrummy
- Kildwick
- Kilfinan
- Kilfinchen
- Kilfinnan
- Kilgetty
- Kilham
- Kilkeel
- Kilkenneth
- Kilkerran
- Kilkhampton
- Killaloo
- Killamarsh
- Killaney
- Killay
- Killead
- Killeague
- Killean
- Killearn
- Killen
- Killeter
- Killichonan
- Killichronan
- Killilan
- Killin
- Killinallan
- Killinchy
- Killingworth
- Killough
- Killowen
- Killunaig
- Killure
- Killybane
- Killycolpy
- Killylea
- Killyleagh
- Kilmacolm
- Kilmaluag
- Kilmany
- Kilmarie
- Kilmarnock
- Kilmaron
- Kilmartin
- Kilmaurs
- Kilmelfort
- Kilmersdon
- Kilmeston
- Kilmichael Glassary
- Kilmichael of Inverlussa
- Kilmington
- Kilmington
- Kilmoluag
- Kilmorack