Luwian (; sometimes spelled Luvian, rarely Luish) is an ancient language or group of languages of the Anatolian branch of the Indo-European language family. The two varieties of Luwian are named for the scripts that they were written in: Cuneiform Luwian (CLuwian) and Hieroglyphic Luwian (HLuwian). As to whether these were one language or two, there is no consensus.

Luwian (; sometimes spelled Luvian, rarely Luish) is an ancient language or group of languages of the Anatolian branch of the Indo-European language family. The two varieties of Luwian are named for the scripts that they were written in: Cuneiform Luwian (CLuwian) and Hieroglyphic Luwian (HLuwian). As to whether these were one language or two, there is no consensus.