Tonnay-Boutonne (French pronunciation: [tɔnɛ butɔn]) is a commune in the Charente-Maritime department in the Nouvelle-Aquitaine region in southwestern France.

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Tonnay-Boutonne
Commune
Bridge over the Boutonne
Location of Tonnay-Boutonne
Tonnay-Boutonne Show map of France Tonnay-Boutonne Show map of Nouvelle-Aquitaine
Coordinates: 45°58′07″N 0°42′20″W
Country	France
Region	Nouvelle-Aquitaine
Department	Charente-Maritime
Arrondissement	Saint-Jean-d'Angély
Canton	Saint-Jean-d'Angély
Government
• Mayor (2020–2026)	Julien Gourraud[1]
Area 1	22.73 km2 (8.78 sq mi)
Population  (2021)[2]	1,183
• Density	52/km2 (130/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	17448 /17380
Elevation	2–46 m (6.6–150.9 ft) (avg. 14 m or 46 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

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The village lies on the right bank of the Boutonne, which flows southwest through the southern part of the commune.

• The door of Saint-Pierre

• Communes of the Charente-Maritime department