Postal code	English → French	For more information about this place:
BH1-11	Bournemouth → Bornemouth	Bournemouth - Wikipedia
CT1-2	Canterbury → Cantorbéry	Canterbury - Wikipedia
CT16-17	Dover → Douvres	Dover - Wikipedia
EH1-17, EH28-30	Edinburgh → Édimbourg
LA1	Lancaster → Lancastre	Lancaster Lancashire - Wikipedia
BR, CM, CR, DA, E, EC, EN, HA, IG, KT, N, NW, RM, SE, SM, SW, TN, TW, UB, W, WC, WD	London → Londres	London - Wikipedia
NE	Newcastle upon Tyne → Neufchâtel-sur-Tyne	Newcastle upon Tyne - Wikipedia

Less widely spoken than Welsh and less likely to be found in address databases, though still commonly used in Ross, the Isle of Skye and the Western Isles, this list provides the Scottish Gaelic equivalents of place names in Scotland:

Postal code	English → Icelandic	For more information about this place:
CB1-5	Cambridge → Kambabryggja	Cambridge - Wikipedia
CT1-5	Canterbury → Kantaraborg	Canterbury - Wikipedia
CT16-17	Dover → Dofrar	Dover - Wikipedia
EH1-17, EH28-30	Edinburgh → Edynburg	Edinburgh - Wikipedia
NR30-31	Great Yarmouth → Járnamóða	Great Yarmouth - Wikipedia
ZE1	Lerwick → Leirvík	Lerwick - Wikipedia
E, EC, N, NW, SE, SW, W, WC	London → Londyn	London - Wikipedia
SO14-SO19	Southampton → Suðurhamtún	Southampton - Wikipedia
	York → Jórvik	York - Wikipedia

Irish Gaelic is spoken in parts of Belfast and in parts of the counties of Armagh and Fermanagh in Northern Ireland. The use of the Irish Gaelic or English settlement name is closely tied to the political opinions of the user concerning the future of Northern Ireland as part of the United Kingdom (English place names) or as part of Ireland (Irish Gaelic place names). Given the civil unrest in this part of the United Kingdom, you should consider very carefully indeed before using Irish Gaelic place names except where your contact person has used them him/herself.

In this list those settlements with an asterisk are in Northern Ireland:

Postal code	English → Vietnamese	For more information about this place:
E, EC, N, NW, SE, SW, W, WC	London → Luân Đôn or Long Đôn	London - Wikipedia

Welsh is widely spoken in Wales, and many settlements in Wales have both Welsh and English names. The British Post Office caters for Welsh place names. These alternative names are listed below. Where more than one settlement of the same name exists in Wales, the county in which it is situated is given in brackets after the English version of the name. Much of this information is derived from Oliver Mason’s Bartholomew Gazetteer of Places in Britain (1989 edition).

Those settlements with an asterisk are in Wales.