Political parties in Canada are organized groups that represent different ideologies and interests in the government. The main parties include the Liberal Party, Conservative Party, New Democratic Party (NDP), and Bloc Québécois. Each party aims to gain power by winning seats in the House of Commons during federal elections. In addition to these major parties, there are smaller parties like the Green Party and People's Party of Canada. Political parties play a crucial role in shaping policies, engaging citizens, and providing choices during elections, reflecting the diverse views of the Canadian population.