Family
- father :
- daughter Ramona Sarsgaard: Born Oct. 3, 2006; mother is Maggie Gyllenhaal
Companions
- Maggie Gyllenhaal: reportedly engaged, December 2002
- Shalom Harlow: dating as of summer 2000
- Companion Malerie Marder: Lived with his close friend from his days at Bard college; she featured Sarsgaard in some of her early work; no longer together
