Gangs in Spain

Mara Salvatrucha (; ), commonly known as MS-13, is an international criminal gang that originated in Los Angeles, California, in the 1980s. Originally, the gang was set up to protect Salvadoran immigrants from other gangs in the Los Angeles area. Over time, the gang grew into a more traditional criminal organization. MS-13 has a longtime rivalry with the 18th Street gang.

largest Latino street gang

Ultras supporter group of FC Barcelona

The Trinitarios is a Dominican American criminal organization founded by Dominicans in New York City in 1993. They were described by the US Justice Department in 2009 as lower-level distributors and one of "the smaller Dominican criminal groups and street gangs", although larger and more structured than the "hundreds of small, unaffiliated neighborhood gangs" in the New York - New Jersey HIDTA.

The NETA Association (Asociación Pro-Derechos del Confinado, "Association for Prisoners' Rights", Asociación NETA, or simply NETA) is the name of a gang that began in the Puerto Rico prison system and spread to the United States mainland. Although Puerto Rico has many small street gangs claiming its poorer neighborhoods, NETAS is by far the largest and most dominant, controlling the illegal drug trade in the island's prison system.