Dominic Haakon Myrtvedt Purcell (born 17 February 1970) is an Australian actor, most active in the United States. He also holds an Irish passport by means of his ancestry. He is best known for his role as Lincoln Burrows in Prison Break, and as the title character in John Doe.

Purcell was born in Merseyside, England and the eldest of five children. He moved to Sydney with his family when he was two, where he was raised by his father, who was British born but of Norwegian and Irish-American ancestry, and Irish mother, Maureen, in the Western Suburbs. Purcell attended Blaxland High School. Purcell's father, who had previously served in the Norwegian Merchant Navy, installed air-conditioning ducts for a living, but later separated from the family. Purcell's paternal grandfather, Haakon, was from Bergen, and his paternal grandmother, Martha, was a New York-born Irish-American according to herself, her family and her birth certificate. His middle name Haakon and his other surname Myrtvedt are both Norwegian.

After quitting his high school education at Blaxland High School, Purcell was employed as a landscaper.