- Abell
- Aburrow
- Acton
- Adams
- Addison
- Adsett
- Aguillon
- Ainsworth
- Alard
- Albery/Allberry
- Albini
- Alchorne/Allcorn
- Aldersmith
- Alexander
- Alfrey
- Allan
- Allcroft
- Allen
- Allwork
- Alwyn
- Ambersham
- Ambrose
- Anderson
- André
- Andrews
- Angus
- Ansell
- Apsley
- Arbuthnot
- Armiger
- Armstrong
- Arnatt
- Arnell
- Arnold
- Arundel
- Ashburnham
- Ashby
- Ashdown
- Ashworth
- Aspley
- Astridge
- Atkins
- Atkinson
- Aubrey
- Aucock
- Austen/Austin
- Avery
- Avis
- Ayliffe
- Ayling
- Ayloffe
- Aylwin/Aylwins
- Aynscombe
