| Official Name: | Gressier |
| Native Name: | Gresye |
| Settlement Type: | Commune |
| Pushpin Map: | Haiti |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Haiti |
| Subdivision Type: | Country |
| Subdivision Name: | Haiti |
| Subdivision Type1: | Department |
| Subdivision Name1: | Ouest |
| Subdivision Type2: | Arrondissement |
| Subdivision Name2: | Port-au-Prince |
| Area Total Km2: | 89.8 |
| Population As Of: | 7 August 2003 |
| Population Footnotes: | [1] |
| Population Total: | 25,947 |
| Population Density Km2: | 288.9 |
| Coordinates: | 18.55°N -72.5167°W |
| Elevation M: | 16 |
Gressier (in French pronounced as /ɡʁesje/; Haitian; Haitian Creole: Gresye) is a commune in the Port-au-Prince Arrondissement, in the Ouest department of Haiti.It has 25,947 inhabitants.
According to the CAGH – Committee for the Advancement of Gressier, Gressier has a population of about 75,000. It is located approximately 12.5miles west of Port-au-Prince. With a total land area of 41.11 square miles, it is bordered on the north by the Gulf of La Gonâve. On the east, Gressier is bordered by the town of Carrefour, on the south by the Momance River, and on the west by the town of Leôgane. It has three main rural sections: Morne à Bateau, Morne à Chandelle, and Petit Boucan.[2]
See also: 2010 Haiti earthquake. A UN assessment team estimated that 40 to 50 per cent of the buildings in Gressier were destroyed in the 12 January 2010 earthquake.[3] The "court of the peace" building was destroyed in the tremblor.[4]
ROKENGCOY, South Korea Engineering Company, is in Gressier since February 2010 to help with demolition and reconstruction, also with medical assistance.