| Saint-Maudez | |
| Native Name: | Sant-Maodez |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr St Maudez.svg |
| Coordinates: | 48.4533°N -2.1811°W |
| Insee: | 22315 |
| Postal Code: | 22980 |
| Arrondissement: | Dinan |
| Canton: | Plancoët |
| Mayor: | Fabrice Rivallan[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Dinan Agglomération |
| Elevation Min M: | 39 |
| Elevation Max M: | 104 |
| Area Km2: | 5.09 |
Saint-Maudez (in French pronounced as /sɛ̃ mode/; Breton: Sant-Maodez) is a commune in the Côtes-d'Armor department of Brittany in northwestern France. It is named after the Breton Saint Maudez.
St. Maudez is the tenth son of the King of Ireland Erelus (or Erelea or Ardea) and Gentuse or Getive, his wife. Saint-Maudez landed in Brittany, around 528, not far from Dol, with his sister Saint Juvette and two disciples, Saint Botmel and Saint Tudy.
Blazon = Carved: 1st of silver sown with shadows of ermine speckles with a line of azure, a lion gules crowned with gold debruising, 2nd of azure sown shadows of ermine speckles and at Saint Maudet bypassed halo issuant from the point and holding his episcopal crozier, all in shadow with the silver line.
Inhabitants of Saint-Maudez are called maudéziens in French.