| Guenroc | |
| Native Name: | Gwenroc'h |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Guenroc (Côtes-d'Armor).svg |
| Coordinates: | 48.3181°N -2.0739°W |
| Insee: | 22069 |
| Postal Code: | 22350 |
| Arrondissement: | Dinan |
| Canton: | Broons |
| Mayor: | Roger Costard[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Dinan Agglomération |
| Elevation Min M: | 23 |
| Elevation Max M: | 102 |
| Area Km2: | 7.39 |
Guenroc (pronounced as /fr/; ; Gallo: Genroc) is a commune in the Côtes-d'Armor department of Brittany in northwestern France.
Inhabitants of Guenroc are called guenrocois in French.