Ian McManus (born 23 August 1945) is an Australian politician. He was a Labor Party member of the New South Wales Legislative Assembly from 1987 to 2003, representing the electorates of Heathcote (1987–88, 1999–2003), Burragorang (1988–1991) and Bulli (1991–99). He was a parliamentary secretary in the first two terms of the Carr Labor government. McManus was born in Scotland, and his family migrated to Australia when he was a child. He attended Helensburgh Primary School, St Patrick's College in Sutherland and St George Technical College in Kogarah.