Luis Ricardo Mejía Cajar (born 16 March 1991) is a Panamanian professional footballer who plays as a goalkeeper for Uruguayan Primera División club Nacional.

Nicknamed Manotas, Mejia made his professional debut playing with Tauro in 2007.

Mejía was part of the Panama U-20 squad that participated in the 2007 FIFA U-20 World Cup in Canada.

He was also part of the Panama U-20 squad that participated in the 2011 CONCACAF U-20 Championship where his outstanding performances led them to qualify to the Youth World Cup in Colombia.

In 2011, he was called up by Julio Dely Valdés to play the 2011 CONCACAF Gold Cup.