Kstama was the Hittite city in Northern Anatolia. Thic city name was found in the archives of Hattusa in a list of towns devastated by the Gasagas of Kaska tribe during the reign of Arnuwanda I (ca. 1390-1380 BC),
- Charles Burney, sv Kastama, Historical Dictionary of the Hittites, Scarecrow Press 2004, p. 151
- Piotr Taracha, Religions of Second Millennium Anatolia, Otto Harrassowitz Verlag 2009, 44-46, diff.