Sur 13 is another name for the Sureños (
Spanish for "Southerners"), a group of Mexican
American street gangs with its origins in the oldest barrios of Southern California. Sur 13 also stands for "Southern United Raza." Raza is
Spanish for "Race." The Number 13 stands for the letter "M," paying homage to the Mexican Mafia Aka La Eme.
See Sureños