Colin Thomas Irwin (born 9 February 1957) is a professional footballer of the early 1980s.
A defender, able to play at left-back or in the centre, Irwin came through the youth ranks at Liverpool, and his first call-up to the first-team squad came, remarkably, in the 1978 European Cup Final.
1980–81 saw a revamp of the Liverpool squad, with many young players given their chance, including Irwin.
Much of it was still owing when the club went bankrupt in 1984, and settled in when they paid out £400,000 for Ashley Williams.
Following retirement, he served as a coach at Bolton Wanderers, under former teammate Phil Neal, from 1985 to 1987.