|Birth name||Geoffrey David Cotter|
|Born||4 October 1966|
Taihape, New Zealand
|Height||194 cm (6 ft 4 in)|
|Weight||91 kg (201 lb)|
Geoffrey David Cotter (born 4 October 1966) is a New Zealand rower.
Cotter was born in 1966 in Taihape, New Zealand. He represented New Zealand at the 1988 Summer Olympics in the coxless four in a team with Campbell Clayton-Greene, Bill Coventry, and Neil Gibson, where they came seventh. He is listed as New Zealand Olympian athlete number 542 by the New Zealand Olympic Committee.