Family
- father Serge Gainsbourg: French; lived with Jane Birken until Charlotte was nine years old; died in 1991 at age 61
- mother Jane Birkin: British; lived with Serge Gainsbourg but never married
- uncle Andrew Birkin:
- half-sister Kaye Barry: Older; father, John Barry
- daughter Alice Attal: Born c. 2002; father is Yvan Attal
- son Ben Attal: Born c. 1997; father is Yvan Attal
Companions
- Yvan Attal: together since c. 1991
