The Anatolian languages are an extinct branch of Indo-European languages that were spoken in Anatolia, part of present-day Turkey. The best known Anatolian language is Hittite, which is considered the earliest-attested Indo-European language.
Undiscovered until the late 19th and 20th centuries, they are considered the earliest group of languages to branch off from the Indo-European family. Once discovered, the presence of laryngeal consonants ḫ and ḫḫ in Hittite and Luwian provided support for the laryngeal theory of Proto-Indo-European linguistics. While Hittite attestation ends after the Bronze Age, hieroglyphic Luwian survived until the conquest of the Neo-Hittite kingdoms by Assyria, and the alphabetic Anatolian languages are fragmentarily attested until the early first millennium AD, eventually succumbing to the Hellenization of Anatolia.