Family
- father Donald E Wahlberg: Divorced from Wahlberg's mother c. 1982; reportedly suffered several strokes; died Feb. 14, 2008
- mother Alma Wahlberg: Divorced from Wahlberg's father c. 1982
- brother Jim Wahlberg: Older
- brother Robert Wahlberg: Older
- sister Tracey Wahlberg: Older
- brother Paul Wahlberg: Older
- brother Arthur Wahlberg: Older
- brother Donald Wahlberg: Born in 1969; former member of the pop group New Kids On the Block
- sister Michelle Wahlberg: Older
- sister Debbie Wahlberg: Older; died Sept. 2, 2003, the same day Wahlberg's daughter was born, from a septic infection
- son Michael Wahlberg: Born March 22, 2006; mother Rhea Durham
- daughter Ella Rae Wahlberg: Born Sept. 2, 2003; mother Rhea Durham
- son Brendan Joseph Wahlberg: Born Sept. 16, 2008; mother Rhea Durham
Companions
- wife Rhea Durham: Began dating in summer 2001; had an on-again, off-again relationship; mother of Wahlberg's three children; married Aug. 1, 2009 at the Good Shephard Catholic Church in Beverly Hills, CA
- China Chow: met during filming of "The Big Hit"; no longer together
- Frida Andersson: dating August 2001; no longer together
- Jordana Brewster: began dating in late 1998; Brewster confirmed they were no longer a couple in June 2001
- Reese Witherspoon: co-starred with Wahlberg in "Fear"; no longer together
- Rhea Durham: reportedly dated in summer 2001
- Sofia Vergara: dating September 2002
