Gressier (French pronunciation: [ɡʁesje]; Haitian Creole: Gresye) is a commune in the Port-au-Prince Arrondissement, in the Ouest department of Haiti.

With a total land area of 41.11 square miles, it is bordered on the north by the Gulf of La Gonâve.

[2] 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.