- Ballingry
- Balerno
- Baldock
- Bala
- Bakewell
- Baildon
- Bagshot
- Bagillt
- Badsey
- Bacup
- Ayr
- Aylsham
- Aylesford
- Aylesbury
- Axminster
- Axbridge
- Awsworth
- Aviemore
- Aveley
- Audley
- Auchtermuchty
- Auchterarder
- Auchinleck
- Atworth
- Attleborough
- Atherton
- Atherstone
- Astwood Bank
- Aston Clinton
- Aspatria
- Askern
- Askam in Furness
- Ashurst
- Ashton-under-Lyne
- Ashton in Makerfield
- Ashtead
- Ashington
- Ashfordby
- Ashford
- Ashby de la Zouch
- Ashburton
- Ashbourne
- Ascot
- Arundel
- Arnside
- Arnold
- Armthorpe
- Armitage
- Armagh
- Armadale
- Arlesey
- Ardrossan
- Arbroath
- Arborfield
- Appley Bridge
- Appleton Thorn
- Appledore
- Appleby-in-Westmorland
- Appleby
- Antrim
- Anstruther
- Anstey
- Annfield Plain
- Annan
- Andover
- Ampthill
- Ammanford
- Amlwch
- Amesbury
- Amersham on the Hill
- Amersham
- Ambleside
- Amble
- Alyth
- Alvechurch
- Alva
- Altrincham
- Alton
- Alsager
- Alrewas
- Alresford
- Alnwick
- Alness
- Alloa
- Alfreton
- Alford
- Alexandria
- Aldridge
- Aldershot
- Alderney
- Alderley Edge
- Alderholt
- Alderbury
- Aldeburgh
- Alcester
- Albrighton
- Airdrie
- Ahoghill
- Adlington
- Addlestone
