The Ontario New Democratic Party (NDP) is a social democratic political party that has formed government once in Ontario (1990-1995) and currently serves as Official Opposition. The party generally supports expanded public services, workers' rights, environmental protection, and progressive taxation. As Official Opposition (as of 2024), the Ontario NDP scrutinizes government decisions and presents alternative policies. Provincial NDP positions on issues like housing, transit, and municipal funding directly affect local government advocacy and policy environments. The Ontario NDP operates independently from the federal NDP while sharing similar values and organizational connections.