Luis Grill Prieto (1928 – 21 April 2011), was an Argentine-born Chilean football player and manager who worked in Chile, Guatemala and Mexico.

[5] He came to Guatemala in 1963 to lead Municipal, becoming the first Chilean who has coached it before Jaime Hormazábal, Javier Mascaró, Rolando Torino and Fernando Díaz.

[6] Despite he had family in Guadalajara, Mexico, after coaching Tecos FC, he made his home in Guatemala and died at the age of 83 due to intestinal issues.

[10] Municipal León Grill Prieto is considered as the discoverer of important Guatemalan players such as Carlos Ruiz,[11] Gonzalo Romero, Marco Ciani, among others.

[1] After his death, Comunicaciones FC started the Copa Luis Grill Prieto in his honor, a friendly match where the club showed the squad for each season.