Taeʼ is a language spoken in Tana Luwu (Land of Luwu). It is an Austronesian language of Sulawesi, Indonesia, and one of the languages of the ten tribes that inhabit Tana Luwu, South Sulawesi. The Taeʼ language is used by most of the inhabitants of the four districts of Tana Luwu: Luwu, North Luwu, Luwu Timur, and Palopo town. Taeʼ is part of the South Sulawesi group of languages. It is closely related to Toraja, and more distantly to Mandar, Massenrempulu, and Mamuju. Taeʼ is used as a lingua franca from south of the border with Buriko Kabupatan Wajo to Malili East Luwu regency, as well as in Tana Toraja and Massenrempulu.