Ian Alexander Colquhoun QSM (8 June 1924 – 25 February 2005) was a New Zealand cricketer who played two Test matches for his country in the 1950s.

[1] Colquhoun was a wicketkeeper and a useful lower-order right-handed batsman who came late to first-class cricket, not making his debut for Central Districts until he was 29.

Colquhoun's own distinction in this second match was to be dismissed first ball in each innings by Bob Appleyard; each time, Alex Moir, who also failed to score in either innings, prevented the hat-trick.

Colquhoun continued to keep wicket for Central Districts until 1963–64, when he retired.

Colquhoun was a teacher at Palmerston North Boys' High School, and also a rugby triallist for the All Blacks.