- Category : 1979-births
- Type : PE
- Profile : 1/3 - Investigating / Martyr
- Definition : Split - Large
- Incarnation Cross : RAX Planning 1
French synchronized swimmer and Olympic medalist.
She won a bronze medal in the women's duet at the 2000 Summer Olympics with Myriam Lignot. She was also successful in the European and World Aquatics Championships, winning several medals.
Dedieu was awarded the Legion of Honour on 1 January 2006.