Twin Towns in the UK
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| UK town | UK region | Overseas town/region | Overseas country |
| Keelby | Lincolnshire | Maisdon-Sur-Sevre | France |
| Kegworth | Leicestershire | Rouen (Plateau Nord) | France |
| Keighley | West Yorkshire | Myrtle Beach | USA |
| Keighley | West Yorkshire | Poix-Du-Nord | France |
| Kelso | Scottish Borders | Orchies | France |
| Kendal | Cumbria | Papatoetoe | New Zealand |
| Kendal | Cumbria | Rinteln | Germany |
| Kenilworth | Warwickshire | Bourg-La-Reine | France |
| Kenilworth | Warwickshire | Eppstein | Germany |
| Kensington & Chelsea | London | Cannes | France |
| Kent County | Kent | Bacs Kiskun County | Hungary |
| Kent County | Kent | Pas-De-Calais | France |
| Kenton | Devon | Linkebeek | Belgium |
| Kenton | Devon | St Lambert Du Lattay | France |
| Kettering | Northamptonshire | Kettering | USA |
| Kettering | Northamptonshire | Lahnstein | Germany |
| Keyworth | Nottinghamshire | Feignies | France |
| Kidderminster | Worcestershire | Husum/Nordsee | Germany |
| Kilmarnock | East Ayrshire | Ales | France |
| Kilmarnock | East Ayrshire | Herstal | Belgium |
| Kilmarnock | East Ayrshire | Kulmbach | Germany |
| Kilmarnock | East Ayrshire | Santa Coloma De Gramanet | Spain |
| Kilmarnock | East Ayrshire | Sukhum | Georgia |
| Kilsby | Northamptonshire | Hericy | France |
| Kilsyth | North Lanarkshire | Meulan | France |
| Kimberley | Nottinghamshire | Echirolles | France |
| King's Lynn & West Norfolk | Norfolk | Emmerich | Germany |
| King's Lynn & West Norfolk | Norfolk | Jicin | Czech Republic |
| King's Lynn & West Norfolk | Norfolk | Mlada Boleslav | Czech Republic |
| King's Lynn & West Norfolk | Norfolk | Sandringham | Australia |
| King's Somborne | Hampshire | St Paul Du Vernay | France |
| Kingham | Oxfordshire | Pont-A-Marcq | France |
| Kingsbridge | Devon | Isigny-Sur-Mer | France |
| Kingsbridge | Devon | Weilerbach | Germany |
| Kingskerswell | Devon | Lonsee | Germany |
| Kingsteignton | Devon | Orbec | France |
| Kingston-Upon-Hull | Kingston-Upon-Hull | Reykjavik | Iceland |
| Kingston-Upon-Hull | Kingston-Upon-Hull | Raleigh | USA |
| Kingston-Upon-Hull | Kingston-Upon-Hull | Rotterdam | Netherlands |
| Kingston-Upon-Hull | Kingston-Upon-Hull | Szczecin | Poland |
| Kingston-Upon-Hull | Kingston-Upon-Hull | Freetown | Sierra Leone |
| Kingston-Upon-Thames | London | Delft | Netherlands |
| Kington | Herefordshire | Marines | France |
| Kinross | Perthshire And Kinross | Gace | France |
| Kinver Anglo-American Association | Park Ridge | New Jersey | USA |
| Kinver Parish Council | South Staffordshire | Park Ridge | USA |
| Kinver Parish Council | South Staffordshire | Mer | France |
| Kirkby-In-Ashfield | Nottinghamshire | Ronchin | France |
| Kirkby-In-Ashfield | Nottinghamshire | Ronchin | France |
| Kirkcaldy | Fife | Ingolstadt | Germany |
| Kirkham | Lancashire | Ancenis | France |
| Kirkham | Lancashire | Bad Bruckenau | Germany |
| Kirklees | West Yorkshire | Kostanai | Kazakhstan |
| Kirklees | West Yorkshire | Besancon | France |
| Kirklees | West Yorkshire | Bielsko-Biala | Poland |
| Kirklees | West Yorkshire | Kreis Unna | Germany |
| Kirriemuir | Angus | Volvic | France |
| Knaresborough | North Yorkshire | Bebra | Germany |
| Knebworth | Hertfordshire | Chatelaillon-Plage | France |
| Knowsley | Merseyside | Moers | Germany |
| Knowsley | Merseyside | Montana | Bulgaria |
| Knutsford | Cheshire | Montmorency | France |
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