Picture from the Internet In Mexico, there are a lot of languages but Spanish is the most spoken language. Spanish is originally from Spain, but nowadays there are little differences between Spanish from Spain and Latin American Spanish. Spanish is spoken in Mexico, Central America and South America. And recently, Spanish is spoken in the USA, too. Spanish is well-known like Cervantes' language, because he wrote "Don Quijote de la Mancha" which is the most famous book written in Spanish.