長州

長州 may refer to:


 * Chang Prefecture (Inner Mongolia) (長州), a prefecture between the 7th and 8th centuries in modern Inner Mongolia
 * Trường Province (Vietnam) (長州), a province between the 8th and 9th centuries in modern Vietnam
 * Chōshū Domain, a feudal domain of Japan during the Edo period
 * Nagato Province, abbreviated name was Chōshū (長州), province of Japan located in what is today Yamaguchi Prefecture