Family
- father Henry Fonda: A highly acclaimed Academy Award-winning actor; best known for his roles in "The Grapes of Wrath" (1940), "War and Peace" (1956), "Once Upon a Time in the West" (1968), and opposite his daughter in "On Golden Pond" (1981); died Aug. 12, 1982
- mother Frances Seymour Brokaw: Committed suicide on Oct. 14, 1950, when Jane was 12 years old
- brother Peter Fonda:
- daughter Vanessa Vadim: Born in 1968; father, Roger Vadim; named after Fonda's friend Vanessa Redgrave
- son Troy Garity: Born in 1973; father Tom Hayden; named after a Vietnamese resistance leader and given paternal grandmother's surname; portrayed his father in "Steal This Movie" (2000), a biopic about Abbie Hoffman
- niece Bridget Fonda: Born in 1964; daughter of Peter Fonda
- grandson Malcolm: Born c. 2000; mother is daughter, Vanessa Vadim
- granddaughter Viva: Born c. 2003; mother is daughter, Vanessa Vadim
- daughter : Adopted a girl who attended a children's camp run by Fonda and then-husband Tom Hayden
Companions
- Companion Richard Perry: Began dating in June 2009 after being set up by actress Carrie Fisher
- Alexander Whitelaw: six years her senior; involved at time of her feature debut, "Tall Story"
- Barry Matalon:
- Donald Sutherland: co-starred in "Klute"; together in the early 1970s
- Lorenzo Caccialanza: Italian
- Companion Lynden Gillis: Began dating in 2007, after meeting at a book signing; no longer together
