Family
- father Geoffrey Lewis: Played a bartender on the series "Flo" (CBS); appeared in several of Clint Eastwood's films, including "High Plains Drifter" (1973) and "Pink Cadillac" (1989); divorced from Glenis Batley when Juliette Lewis was two
- mother Glenis Batley: Divorced from Geoffrey Lewis when Juliette Lewis was two
- brother Lightfield Lewis: Born in 1970; feature directorial debut, "The Audition," starring Juliette Lewis
- sister Brandy Lewis: Born in 1975; works as Lewis' personal assistant
- half-brother Peter Lewis:
- half-sister Dierdre Lewis:
Companions
- Companion Brad Pitt: Met while starring in "Too Young to Die?" (1990); also co-starred in "Kalifornia" (1993); together from 1989-1993
- Brad Pitt: co-starred in TV-movie, "Too Young to Die?" (1990); dated c. September 1989 to February 1993
- husband Steve Berrea: born c. 1972; married on September 9. 1999
