Champlain (French pronunciation: [ʃɑ̃plɛ̃] ⓘ) is a municipality in the province of Quebec, Canada.

[4] The Commission de toponymie du Québec has noted a "popular version" of the origin of the name, which suggests that Champlain gave the area its name because, "amazed by the beauty of the place, [he] exclaimed to himself, 'What a beautiful flat plain', from the Latin campus planus, 'flat field'.

It appears that it was the first seigneur, Étienne Pézard de la Touche, who gave the name of "Champlain" to the seigniory, then to the parish.

[6] In 1684, the area was already well known as Champlain, demonstrated when Bishop Laval, finally giving the official titles of the parish twenty years after its foundation, referred to: "the place commonly called Champlain".

[8] In 1829 the name was used for the electoral district for the area in the Legislative Assembly of Lower Canada, and in 1841, the electoral district for the Legislative Assembly of the Province of Canada.