Ian Sinclair (disambiguation)

Ian Sinclair (born 1929) is an Australian politician.

Ian Sinclair may also refer to:

• Iain Sinclair (born 1943), British writer
• 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 for ONE News
• Ian Sinclair (Canadian football) (born 1963), Canadian football player
• Ian Sinclair (voice actor), American voice actor
• Ian Sinclair (activist), British left-wing activist