Elsa Liliana Chalá Mejía (born June 7, 1965) is a retired female track and field athlete from Ecuador, who competed in the 400 m hurdling and sprints events.

She represented her native country twice at the Summer Olympics: 1988 and 1992.

She set a personal best of 23.74 seconds in the 200 Metres at an event in São Paulo on October 9, 1987.

[1] 1Representing the Americas