Joseph-Arthur Denis (26 April 1881 – 1 October 1934) was a Liberal party member of the House of Commons of Canada.
He was born in Saint-Norbert, Quebec in Berthier County and became a physician.
Denis died on 1 October 1934 before he was able to complete his fourth term, the 17th Canadian Parliament.
His brother Azellus succeeded him as member for St. Denis.
This article about a Quebec Member of Parliament from the Liberal Party of Canada is a stub.