Yax Nuun Ayiin I

Yax Nuun Ahiin I
Ajaw of Tikal
Stela 4 at Tikal names Yax Nuun Ahiin I
Reign	September 12,379-June 17, 404?
Predecessor	Chak Tok Ich'aak I
Successor	Sihyaj Chan K'awiil II
Died	June 17, 404?
Burial	Temple 34 (Burial 10)
Issue	Sihyaj Chan K'awiil II
Father	Spearthrower Owl
Mother	Lady K'inich
Religion	Maya religion

Yax Nuun Ahiin I also known as Curl Snout and Curl Nose, (died June 17, 404?), was an ajaw of the Maya city of Tikal. He took the throne on September 12, 379 and reigning until his death.

Yax Nuun Ayiin was a son of Spearthrower Owl, a lord of Teotihuacano (probably that city's king) in central Mexico. The installation of a Teotihuacano noble on the throne of Tikal marks a high point of Teotihuacan influence in the central Maya lowlands. Yax Nuun Ahiin I may have been a child or youth at the time of his coronation, and the early years of his reign seems to have been dominated by one of his father's generals, Sihyaj K'ahk', in a sort of regency. His tomb, known as "Burial 10", was discovered by University of Pennsylvania archaeologists. He was succeeded by his son Sihyaj Chan K'awiil II probably in 425. The monuments associated with Yax Nuun Ahiin I are Stelae 4 and Stelae 18.