| Cardroc | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville Cardroc 35.svg |
| Coordinates: | 48.2861°N -1.8886°W |
| Insee: | 35050 |
| Postal Code: | 35190 |
| Arrondissement: | Rennes |
| Canton: | Combourg |
| Mayor: | Marie-Thérèse Cakain[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 65 |
| Elevation Max M: | 152 |
| Area Km2: | 7.39 |
Cardroc (in French pronounced as /kaʁdʁɔk/; Gallo: Cadro, Breton: Kerdreg) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.
Inhabitants of Cardroc are called Cardreuciens in French.