Luis Mario Cayetano Spota Saavedra Ruotti Castañares (13 July 1925, Mexico City — 20 January 1985) was a Mexican writer, journalist, boxing official and film director.

Although he never finished primary school, Spota became a highly successful author and journalist in his lifetime, appearing frequently on TV and radio. He was also a busy screenwriter for the Mexican film industry. He was a close friend of the Mexican president Miguel Aleman Valdes.