| Yax Nuun Ahiin II | |
| Ajaw | |
| Reign: | 25 December 768 - c.794 |
| Succession: | King of Tikal |
| Predecessor: | 28th Ruler |
| Successor: | Nuun Ujol K'inich |
| Father: | Yik'in Chan K'awiil |
| Birth Date: | before 768 |
| Birth Place: | Tikal |
| Death Date: | c.794 |
| Death Place: | Tikal |
| Religion: | Maya religion |
| Signature: | Yax Nuun Ahiin II.svg |
Yax Nuun Ahiin II[1] also known as Ruler C and Chitam, (before 768-c.794), was an ajaw of the Maya city of Tikal. He took the throne on December 25, 768 and reigning probably until his death.[2] He was son of Yik'in Chan K'awiil and brother of 28th Ruler. The monuments associated with Yax Nuun Ahiin II are: Stelae 19, 21 and Altars 6 and 10.[3] [4]