Le Vésinet (French: [lə vezinɛ] ⓘ) is a suburban commune in the Yvelines department in the Île-de-France region in north-central France.

Le Vésinet is one of the wealthiest suburbs of Paris, known for its wooded avenues, mansions and lakes.

The surrounding communes are Chatou on the east, Croissy-sur-Seine on the south, Le Pecq on the west, and Montesson on the north.

These lakes are linked by nearly 4 km of artificial streams called les Petites Rivières.

The following are notable buildings: Since 1997, Le Vésinet has received the ultimate distinction of four flowers in the national competition for villes fleuries.