Family
- father Hans Heidkrüger: Divorced from Kruger's mother c. 1989
- mother Maria-Theresa: Divorced from Kruger's father c. 1989
- brother Stefan Heidkrüger: Younger
- grandparents :
Companions
- Companion Joshua Jackson: Began dating June 2006; briefly split in 2007, but reconciled shortly after
- husband Guillaume Canet: Married 2001-2006
