Ian Sinclair (disambiguation)
Ian Sinclair is an Australian politician.
Ian Sinclair may also refer to:
- Ian David Sinclair, Canadian businessman and senator
- Ian Sinclair (cricketer), New Zealand cricketer
- Ian Sinclair (broadcaster), New Zealand television journalist and reporter
- Ian Sinclair (Canadian football), Canadian football player
- Ian Sinclair (voice actor), American voice actor
- Sir Ian Sinclair (barrister), British international lawyer