Joseph Oscar Lefebre Boulanger (November 3, 1888 – July 21, 1958) was a Canadian politician and lawyer.

He was elected to the House of Commons of Canada in 1926 as a Member of the Liberal Party to represent the riding of Bellechasse.

Joseph Oscar Lefebre Boulanger was born in Saint-Charles-de-Bellechasse, Quebec on November 3, 1888.

[1] He died at his summer home in Bellechasse County on July 21, 1958.

[2] This article about a Quebec Member of Parliament from the Liberal Party of Canada is a stub.