New Democratic Party

The New Democratic Party (NDP; French: Nouveau Parti démocratique, NPD) is a federal political party in Canada. Widely described as social democratic and democratic socialist, the party sits at the centre-left to left-wing of the Canadian political spectrum, to the left of the Liberal Party. The party was founded in 1961 by the Co-operative Commonwealth Federation and the Canadian Labour Congress. As of 2026, it is the fourth-largest party in the House of Commons, with five seats.

The federal and provincial (or territorial) level NDPs are more integrated than other political parties in Canada, and have shared membership. The NDP has never won the largest share of seats at the federal level and thus has never formed a government. From 2011 to 2015, it formed the Official Opposition; apart from this, it has been the third or fourth-largest party in the House of Commons. However, the party has held the balance of power, and with it considerable influence, during periods of Liberal minority governments. Sub-national branches of the NDP have formed the government in six provinces (Ontario, Manitoba, Saskatchewan, Alberta, British Columbia, and Nova Scotia) and the territory of Yukon. The NDP supports a mixed economy, broader welfare, Senate abolition, LGBTQ rights, international peace, environmental stewardship, and expanding Canada's universal healthcare system to include dental care, mental health care, eye and hearing care, infertility procedures, and prescription drugs.