Dagur Kári (born Dagur Kári Pétursson; 12 December 1973) is an Icelandic film director.
He was born in Paris, France, to Icelandic parents, and returned to Iceland when he was 3 years old.
Dagur graduated from the National Film School of Denmark in 1999, with art house short movie Lost Weekend.
The film got off to a good start, and gained the first popularity winning 11 prizes on the international festival circuit.