Melissa Ashby (born March 6, 1986) is a Grenadian former swimmer, who specialized in breaststroke events.

[1] Ashby qualified for the women's 100 m breaststroke at the 2004 Summer Olympics in Athens, by receiving a Universality place from FINA, in an entry time of 1:20.53.

[2] She challenged seven other swimmers in heat one, including Bolivia's Katerine Moreno, who competed at her third Olympics since 1988.

Ashby failed to advance into the semifinals, as she placed forty-fifth overall in the prelims.

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