| Argentré-du-Plessis | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason_ville_fr_Argentré-du-Plessis_(Ille-et-Vilaine).svg |
| Coordinates: | 48.0581°N -1.1528°W |
| Arrondissement: | Fougères-Vitré |
| Canton: | La Guerche-de-Bretagne |
| Insee: | 35006 |
| Postal Code: | 35370 |
| Mayor: | Jean-Noël Bévière[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Vitré Communauté |
| Elevation M: | 89 |
| Elevation Min M: | 67 |
| Elevation Max M: | 163 |
| Area Km2: | 41.46 |
Argentré-du-Plessis (in French pronounced as /aʁʒɑ̃tʁe dy plɛsi/; Breton: Argantred-ar-Genkiz; Gallo: Arjantrae) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.
Inhabitants of Argentré-du-Plessis are called Argentréens in French.
The Château du Plessis is a local chateau with some vestiges of 16th-century construction, although it was largely rebuilt in the 19th century.
The church of Notre-Dame was built between 1775 and 1779.
The archaeological excavation at Bois du Pinel has uncovered fortifications dating from the 11th century, including a moat, two courtyards, and two enclosures.