International language may refer to:
Esperanto, whose original name was international language Unua Libro or Dr. Esperanto's International Language, the first book detailing Esperanto International auxiliary language, a language meant for communication between people who do not share a common native language International English, a concept of the English language as a global means of communication International Sign Lingua franca, any language widely used beyond the population of its native speakers Love Mathematics Music Universal language, a hypothetical historical or mythical language said to be spoken and understood by all of the world's population World language, a language spoken internationally
Other uses International Language (album), a 1993 album by Cabaret Voltaire