A
- Alan Ainscow (born 1953) – a former professional footballer.
- Alyn Ainsworth (1924–1990) – band leader, orchestra conductor, and musical director.
- Simon Aldred – lead singer of Cherry Ghost.
- Monica Ali (born 1967) – author, born in East Pakistan (now Bangladesh), but settled and grew up in Bolton – former pupil of Bolton School.
- Sir Richard Arkwright (1732–1792) – Inventor of the Water Frame - Born in Preston.
- Ian Aspinall (born 1961) – actor, played roles in Holby City and East is East.
Read more about this topic: List Of People From Bolton