Horacio Silvestre Quiroga Forteza was an Uruguayan playwright, poet, and (above all) short story writer.

He wrote stories which, in their jungle settings, use the supernatural and the bizarre to show the struggle of man and animal to survive. He also excelled in portraying mental illness and hallucinatory states. His influence can be seen in the Latin American magic realism of Gabriel García Márquez and the postmodern surrealism of Julio Cortázar.