Negros Occidental (Filipino: Kanlurang Negros; Hiligaynon: Negros Nakatundan) is a province of the Philippines located in the Negros Island Region. Its capital is Bacolod City and it occupies the northwestern half of Negros Island; Negros Oriental is at the southeastern half. Across the Panay Gulf and the Guimaras Strait to the northwest is the island-province of Guimaras and the province of Iloilo on Panay Island. Known as the "Sugarbowl of the Philippines", Negros Occidental produces more than half the nation's sugar output.
The population of the province is 3,100,651. It is the most populated province in the Negros Island Region.