Poissy (French: [pwasi] ^ⓘ) is a commune in the Yvelines department in the Île-de-France region in north-central France. It is located in the western suburbs of Paris, 23.8 km (14.8 mi) from the centre of Paris. Inhabitants are called Pisciacais in French.

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Quick Facts Country, Region ...

Poissy
Commune
Coat of arms
Location (in red) within Paris inner and outer suburbs
Location of Poissy
Poissy Show map of France Poissy Show map of Île-de-France (region)
Coordinates: 48°55′46″N 2°02′44″E
Country	France
Region	Île-de-France
Department	Yvelines
Arrondissement	Saint-Germain-en-Laye
Canton	Poissy
Intercommunality	CU Grand Paris Seine et Oise
Government
• Mayor (2022–2026)	Sandrine Berno Dos Santos[1]
Area 1	13.28 km2 (5.13 sq mi)
Population  (2021)[2]	40,016
• Density	3,000/km2 (7,800/sq mi)
Demonym(s)	Pisciacais (masculine) Pisciacaise (feminine)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	78498 /78300
Elevation	17–171 m (56–561 ft) (avg. 27 m or 89 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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Poissy is one of the oldest royal cities of Île-de-France, birthplace of Louis IX of France and Philip III of France, before being supplanted from the 15th century by Saint-Germain-en-Laye. In 1561, it was the site of a fruitless Catholic–Huguenot conference, the Colloquy of Poissy.

The area is known for hosting the Automobiles Gregoire successively, Matford, Ford SAF, Simca, Chrysler, Talbot factories and now hosts one of France's largest Peugeot factories. The "Simca Poissy engine" was made there.

Poissy is the 165th most populated city in Metropolitan France.

Poissy is located about 30 kilometres west of Paris, in the north-eastern part of the Yvelines, 8 kilometres west of Saint-Germain-en-Laye, and 23 kilometres north-west of Versailles, the departmental prefecture.

The city is limited to the east by the forest of Saint-Germain-en-Laye and to the west by the Seine.

Poissy is served by Poissy station on Paris RER line A and on the Transilien Paris-Saint-Lazare suburban rail line.

• Villa Savoye, considered by many to be the seminal work of the Swiss architect Le Corbusier.
• The "Noyau de Poissy" is a liquor based on macerated or distilled apricot pits, a local tradition since early 18th century.^[5]

Poissy has ten public preschools, ten public elementary schools, two junior high schools, two senior high schools, a combined junior-senior high school, along with a private preschool and elementary school.^[7]

Public secondary schools:

• Collège les Grands-Champs
  • SEGPA les Grands-Champs
• Collège Jean Jaurès
• Lycée Adrienne Bolland
• Lycée Charles de Gaulle
• Collège et Lycée Le Corbusier

Private elementary schools:

• Institution Notre-Dame preschool and elementary school

• Centre hospitalier intercommunal de Poissy-Saint-Germain-en-Laye

Poissy is twinned with:

• Pirmasens, Rhineland-Palatinate, Germany, since 1964.

• Saint Louis (1214–1270), king of France
• Guillaume Lasceux (1740–1831), composer and organist
• Jean-Louis-Ernest Meissonier (1815–1891), painter, sculptor and mayor of Poissy
• Ibrahim Diaw, handball player
• Florent Groberg, U.S. Army Medal of Honor recipient
• Matteo Guendouzi footballer
• Catherine Lara, singer born in 1945
• Houssine Kharja, Moroccan football player born in 1982
• Benjamin Franklin resided in Poissy for a time while envoy to France during the American Revolutionary War
• Jérôme Phojo, footballer
• Fabien Raddas, footballer
• Yohann Sangare, basketball player
• Christophe Jaffrelot, political scientist and indologist
• Olivier Lombard, racing driver
• Alexandre Müller (born 1997), tennis player

• Skatepark
• The golf of Béthemont
• Stadium Léo-Lagrange, built in 1945
• Swimming pool des Migneaux and swimming pool Saint-Exupéry
• AS Poissy

• Communes of the Yvelines department