Family
- father Charles Theron: French; reportedly was abusive to his wife who shot and killed him in 1991
- mother Gerda Theron: German; shot and killed her husband in 1991; no charges filed as it was determined she acted in self-defense when he attacked her while drunk; took over family business; remarried but separated from second husband after the death of her stepson Denver
- step-brother Denver: Died in a 1997 auto accident at the age of 22
Companions
- Craig Bierko: together from c. 1996 to 1998
- Stephan Jenkins: born c. 1964; lead singer with band Third Eye Blind; dated from May 1998 to early 2001; rumored to be dating musician Vanessa Carlton
- Stuart Townsend: dating from summer 2001
