Coordinates: 40°01′30″N 34°37′58″E / 40.025°N 34.63278°E / 40.025; 34.63278

Yazılıkaya (Turkish for "inscribed rock") was a sanctuary of Hattusa, the capital city of the Hittite Empire, today in the Çorum Province, Turkey.

This was a holy site for the Hittites, located within walking distance of the gates of the city of Hattusa. It had two main chambers formed inside a group of rock outcrops. Access to the roofless chambers were controlled by gateway and building structures built right in front of them, however only the foundations of those structures survived today. Most impressive today are the rock-cut reliefs of Chambers A and B portraying the gods of the Hittite pantheon. One of the uses of the sanctuary may have involved the New Year's celebrations ceremonies. It was in use at least since late 16th century BCE, but most of the rock carvings date to the reign of the Hittite kings Tudhaliya IV and Suppiluliuma II in the late 13th century BCE, when the site underwent a significant restoration.