Dayak

Dayak may refer to:


 * Dayak people, an ethnic group native to the interior of Borneo island in Indonesia and Malaysia
 * Dayak language
 * Land Dayak languages
 * A creature in the science fiction film Immortal (2004 film)
 * Troy Dayak (born 1971), American soccer player
 * Mano Dayak (1949-1995), Tuareg freedom fighter, leader, and negotiator