| Colin Johnstone | |
| Full Name: | Colin Gordon Johnstone |
| Birth Place: | Waipukurau, New Zealand |
| Death Place: | Whanganui, New Zealand |
| Sport: | Rowing |
| Club: | Aramoho Boating Club, Whanganui |
Colin Gordon Johnstone (14 September 1921 - 10 November 1991) was a New Zealand rowing coxswain who mostly competed in coxed fours. He won a gold medal at the 1950 British Empire Games, and competed at the 1952 and 1956 Summer Olympics.[1] [2]