Ḫiyawa (Hieroglyphic Luwian: 𔗒𔓱𔗬𔔂‎) or Adanawa (Hieroglyphic Luwian: 𔐓𔗢𔗬𔔂‎) was a Luwian-speaking Syro-Hittite state which existed in southeastern Anatolia in the Iron Age.

The native Luwian name of the kingdom was Ḫiyawa (𔗒𔓱𔗬𔔂‎), which bears a strong similarity to the name Aḫḫiyawā (𒆳𒌷𒄴𒄭𒅀𒉿𒀀) used to refer to the Achaeans (Ancient Greek: Ἀχαιοί, romanized: Akhaioí, from earlier Ἀχαιϝοί, Akhaiwoí), that is to the Mycenaean Greeks, in the Hittite texts of the Bronze Age. The use of this name for the kingdom of Ḫiyawa might have been the result of a migration of Greek populations from Western Anatolia into this region in the early Iron Age.

The name Ḫiyawa was recorded in Semitic languages in several forms:

Another name by which the kingdom of Ḫiyawa was called in its native Hieroglyphic Luwian inscriptions was Adanawa (𔐓𔗢𔗬𔔂‎), which was derived from the name of the state's capital and was used synonymously with the name Ḫiyawa.

The scholar Rostyslav Oreshko has however suggested that the value of the sign 𔗢‎ was -ḫiya-, and that the name 𔐓𔗢𔗬𔔂‎ should therefore be read as Aḫḫiyawa.

The Phoenician inscriptions from Ḫiyawa also used the name lit. 'Plain of Adana' (Phoenician: 𐤏𐤌𐤒 𐤀𐤃𐤍‎, romanized: ʿMQ ʾDN) as the equivalent of both the names Ḫiyawa and Adanawa.

In Phoenician inscriptions, the people of Ḫiyawa are called the Danunayim (𐤃𐤍𐤍𐤉𐤌‎) likely describing them as the people of Adanawa. This name might possibly be connected with the name of the Land of Danuna (Middle Babylonian Akkadian: 𒆳𒁕𒉡𒈾) mentioned in Late Bronze Age texts, as well as with one of the constituent groups of the Sea Peoples, the Denyen (Late Egyptian: 𓂧𓐰𓄿𓇋𓈖𓐰𓇋𓐱𓍢𓋔𓄿𓌙𓀀𓐱𓀭𓐰𓏥, romanized: dꜣjnjwnꜣ, Ancient Egyptian pronunciation: [da.nu.nə]).

In the Luwian-Phoenician bilingual inscription of one Azzattiwadas who was subordinate to the king Awarikus of Ḫiyawa, the Phoenician language equivalent of the kingdom of Adanawa was given as (land of) the Danunayim (Phoenician: 𐤃𐤍𐤍𐤉𐤌‎), that is of the Danunians.