Hittite, also known as Nesite, is an extinct Indo-European language that was spoken by the Hittites, a people of Bronze Age Anatolia who created an empire centred on Hattusa, as well as parts of the northern Levant and Upper Mesopotamia. The language, now long extinct, is attested in cuneiform, in records dating from the 17th to the 13th centuries BC, with isolated Hittite loanwords and numerous personal names appearing in an Old Assyrian context from as early as the 20th century BC, making it the earliest attested use of the Indo-European languages.

Kültepe, also known as Kanesh or Nesha, is an archaeological site in Kayseri Province, Turkey, inhabited from the beginning of the 3rd millennium BC, in the Early Bronze Age. The nearest modern city to Kültepe is Kayseri, about 20km southwest. It consisted of an Upper city, and a lower city, where an Assyrian kārum, trading colony, was found. Its ancient names are recorded in Assyrian and Hittite sources. In cuneiform inscriptions from the 20th and the 19th century BC, the city was mentioned as Kaneš (Kanesh); in later Hittite inscriptions, the city was mentioned as Neša, or occasionally as Aniša (Anisha). In 2014, the archaeological site was inscribed in the Tentative list of World Heritage Sites in Turkey. It is the place where the earliest record of a definitively Indo-European language has been found, Hittite, dated to the 20th century BC.