Kevin Leon was born in Los Angeles, to Carmen Osorio and Andrés Leon. Both his parents were born in Guatemala with his father being of full or partial Chinese descent. His mother moved from Guatemala to Tijuana, Mexico in the 1960s; she later moved to Los Angeles, a single mother with two children, to work as a housekeeper where she met De León's father. His father was largely absent and his mother married to a man of Mexican descent, taking the name Carmen Osorio Núñez, and relocated to San Diego. His mother divorced and De León was raised in the Logan Heights neighborhood in San Diego by his mother. He also spent part of his youth in Tijuana, Baja California, Mexico where his stepfather's family was located. He strongly identifies with Mexican culture.