Moctezuma I (also known as Moctezuma Ilhuicamina, the surname meaning "archer of the sky") was an Aztec ruler of the city of Tenochtitlan.

Moctezuma extended the boundaries of the Aztec empire beyond the Valley of México to the Gulf Coast. He subjugated the Huastec and Totonac peoples and thereby gained access to exotic goods such as cocoa, rubber, cotton, fruits, feathers, and seashells.

He took power in 1440; he was preceded by Itzcóatl and followed by Axayacatl.