Joseph Lafontaine (4 April 1885 – 14 December 1965) was a merchant and political figure in Quebec.
He represented Mégantic—Frontenac and then Mégantic in the House of Commons of Canada as a Liberal member from 1940 to 1958.
He was born in St-Calixte de Somerset, Quebec, the son of Grégoire Lafontaine and Aurélie Tourigny, and was educated in Arthabaska.
Lafontaine was an unsuccessful candidate for a seat in the Quebec assembly in 1935.
This article about a Quebec Member of Parliament from the Liberal Party of Canada is a stub.