Ian Sinclair (disambiguation)

Ian Sinclair (born 1929) is an Australian politician.

Ian Sinclair may also refer to:


 * Ian David Sinclair (1913–2006), Canadian businessman and senator
 * Ian Sinclair (cricketer) (born 1933), New Zealand cricketer
 * Ian Sinclair (broadcaster), New Zealand television journalist and reporter
 * Ian Sinclair (Canadian football) (born 1960), Canadian football player
 * Ian Sinclair (voice actor) (born 1984), American voice actor
 * Sir Ian Sinclair (lawyer) (1926–2013), British international lawyer
 * Iain Sinclair (born 1943), British writer
 * Iain Sinclair (rugby union) (born 1976), Scottish rugby union player