Marc Lachieze Rey
- Category : 1950-births
- Type : GP
- Profile : 5/1 - Heretical / Investigator
- Definition : Split - Large
- Incarnation Cross : LAX Revolution 2
French astrophysicist, cosmologist and theorist at CNRS, working in the laboratory 'AstroParticule and Cosmology' (APC) in Paris. He also teaches at the 'Ecole Centrale' Paris. His scientific publications interests include the topology of space-time, gravity and dark matter.