Family
- grandfather E G Willis: Willis named a building in Hailey, Idaho after him
- father David Willis: Acted in "Die Hard 2" (1990) and "Mortal Thoughts" (1991); divorced from Willis' mother in 1971
- mother Marlene Willis: Worked in a bank; moved to California after her 1971 divorce from Willis' father
- brother David Willis: Serves as vice president of Willis' production company
- brother Robert Willis: Formerly in partnership with Skyline Entertainment; died of pancreatic cancer at age 42 on June 26, 2001
- daughter Rumer Glenn Willis: Born Aug. 16, 1988; mother, Demi Moore; named after British novelist Rumer Godden; made feature film debut opposite mother Demi Moore in "Striptease" (1996)
- daughter Scout LaRue Willis: Born July 20, 1991; mother, Demi Moore; first name comes from child narrator of the novel "To Kill a Mockingbird"
- daughter Tallulah Belle Willis: Born Feb. 3, 1994; mother, Demi Moore; appeared with Moore as baby Pearl in "The Scarlet Letter" (1995)
- step-mother Alma Willis:
- sister Florence Willis Rogers:
Companions
- Companion Brooke Burns: Began dating in August 2003; rumored to be engaged as of April 2004; reportedly split in June 2004
- Emily Sandberg: born c. 1977; dating since November 2000
- Maria Bravo: Spanish; dated from summer 1999 to 2000
- Sheri Rivera: lived together prior to his marriage to Moore; former wife of Geraldo Rivera
- wife Emma Hemming: Began dating in 2008; married March 21, 2009 in a small, private ceremony at his home in Parrot Cay in the Turks & Caicos Islands
