| Saint-Guyomard | |
| Native Name: | Sant-Gwioñvarc'h |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Guyomard (Morbihan).svg |
| Coordinates: | 47.7817°N -2.5125°W |
| Insee: | 56219 |
| Postal Code: | 56460 |
| Arrondissement: | Vannes |
| Canton: | Moréac |
| Mayor: | Maurice Braud[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC de l'Oust à Brocéliande |
| Elevation Min M: | 20 |
| Elevation Max M: | 108 |
| Area Km2: | 19.66 |
Saint-Guyomard (pronounced as /fr/; br|Sant-Gwioñvarc'h) is a commune in the Morbihan department of Brittany in north-western France.[2]
Inhabitants of Saint-Guyomard are called in French Guyomardais. The official population in 2019 was 1,389.[3]