Family
- father Viggo Mortensen, Sr.: Danish; divorced Viggo Mortensen's mother in 1969; lived with son in Copenhagen, Denmark after the divorce
- mother Grace Mortensen: American; divorced Viggo Mortensen's father in 1969
- brother Charles Mortensen: Younger
- brother Walter Mortensen: Younger
- son Henry Mortensen: Born c. 1988; mother, Exene Cervenka
Companions
- Companion Lola Schnabel: Daughter of painter-filmmaker Julian Schnabel; dated c. 2001-2002
- wife Exene Cervenka: member of the punk band X; met while making the film "Salvation!"; divorced
- Companion Josie D'Arby: Reportedly dated in 2003/2004; joined Mortensen at the premiere of "Lord of the Rings: Return of the King" (2003)
