| Plaine-d'Argenson | |
| Commune Status: | Commune |
| Arrondissement: | Niort |
| Canton: | Mignon-et-Boutonne |
| Insee: | 79078 |
| Postal Code: | 79360 |
| Mayor: | Jean-François Salanon[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Niortais |
| Coordinates: | 46.1541°N -0.4848°W |
| Area Km2: | 44.93 |
Plaine-d'Argenson (in French pronounced as /plɛn daʁʒɑ̃sɔ̃/) is a commune in the department of Deux-Sèvres, western France. The municipality was established on 1 January 2018 by merger of the former communes of Prissé-la-Charrière (the seat), Belleville, Boisserolles and Saint-Étienne-la-Cigogne.[2]