Ati

As a word, Ati may refer to:

• Ati (Philippines), a Negrito ethnic group in the Philippines

• Ati-Atihan Festival, an annual celebration held in the Philippines

• Ati (queen), a queen of the fabled Land of Punt in Africa
• Ati, Chad, a town in Chad
• Ati, Iran, a village in Khuzestan Province, Iran
• Maha Ati, one of the nine subdivisions of Buddhist Tantra in the Nyingma school

As an acronym, ATI may refer to: