

Eraclio Zepeda (mexican) -Benzulul, short stories.
Elena Garro (mexican) - Los Recuerdos del Porvenir, novel
Bruno Traven (likely german but with mexican nationality, he lived and produced most of his work in (and about life in) méxico so I’m including him here) Canasta de Cuentos Mexicanos, short stories.
Carlos Castañeda (peruvian) - The Teachings of Don Juan,.novel
Edited to add:
Juan Rulfo (mexican)- Pedro Páramo, novel/ El Llano en llamas, short stories
Agreed on his politics, yuck. Such a shame.