Olivia Celia McKoy (born 1 December 1973) is a retired female javelin and discus thrower from Jamaica.

She won the silver medals at the 1999 and 2005 Central American and Caribbean Championships and the bronze medal at the 2006 Commonwealth Games, and finished fourth at the 2006 Central American and Caribbean Games.

She also competed at the 2000 Olympic Games, the 2005 World Championships and the 2008 Olympic Games. Her personal best throw is 61.10 metres, the standing Jamaican Woman’s record, achieved in July 2005 in Nassau.