Terrence Elton Haynes (born October 5, 1984) is a two-time Olympic swimmer from Barbados.

He represented Barbados at the 2004 and 2008 Olympics.

He currently resides in Toronto, as a member of the Varsity Blues swim team at the University of Toronto.

He holds the Barbadian record in the 50m and 100m freestyle events.

This biographical article related to a Barbadian swimmer is a stub.