Colin Johnstone

Colin Gordon Johnstone (14 September 1921 – 10 November 1991) was a New Zealand representative rower.

At the 1950 British Empire Games he won the gold medal as part of the men's coxed four. He competed at the 1952 and 1956 Summer Olympics in the same event, his best result was in 1956 in Helsinki where the coxed four placed fourth in the semi-final.