The Kalibo Santo Niño—Ati-Atihan Festival, also simply called Ati-Atihan Festival, is a Philippine festival held annually in January in honor of the Santo Niño in several towns of the province of Aklan, Panay Island.
The biggest celebration is held during the third Sunday of January in the town of Kalibo, the province's capital. The name Ati-Atihan means "to imitate the Ati people".