Answer
Cheech Marin's surname, Marin, is of Spanish origin. It is a patronymic surname, derived from the given name "Marino," which is the Spanish equivalent of the Latin name "Marinus." The name Marino means "of the sea" or "sailor" in Latin. The surname Marin is common in Spain and Latin America, and it is also found in other parts of the world, such as the United States.