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Vailly-sur-Aisne
Commune
Town hall
Coat of arms
Location of Vailly-sur-Aisne
Vailly-sur-Aisne Show map of France Vailly-sur-Aisne Show map of Hauts-de-France
Coordinates: 49°24′36″N 3°31′02″E / 49.41°N 3.5172°E / 49.41; 3.5172
Country	France
Region	Hauts-de-France
Department	Aisne
Arrondissement	Soissons
Canton	Fère-en-Tardenois
Intercommunality	Val de l'Aisne
Government
• Mayor (2020–2026)	Arnaud Battefort[1]
Area 1	9.97 km2 (3.85 sq mi)
Population  (2023)[2]	2,050
• Density	206/km2 (533/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	02758 /02370
Elevation	42–192 m (138–630 ft) (avg. 42 m or 138 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Vailly-sur-Aisne (French pronunciation: [vɛli syʁ ɛːn]) is a commune in the Aisne department in Hauts-de-France in northern France.

The Commonwealth War Graves Commission maintains a cemetery, Vailly British Cemetery, at Vailly-sur-Aisne.^[3]

The town, derives its name from the Aisne, which flows just south of downtown. It is located around 13 kilometers from Soissons and 100 kilometers from Paris.

• Communes of the Aisne department