Jean-Baptiste Blanchet (October 1842 – August 31, 1904) was a Canadian politician.
Born in Saint-Damase, Canada East, he was elected to the House of Commons of Canada in a 1904 by-election as a Member of the Liberal Party to represent the riding of St. Hyacinthe.
He died in office while having served for just 198 days.
He was also an alderman for Saint-Hyacinthe, Quebec.
This article about a Quebec Member of Parliament from the Liberal Party of Canada is a stub.