Sir Joseph Wesley Flavelle, 1st Baronet (February 15, 1858 – March 7, 1939) was a Canadian businessman.

By the 1890s,[2] Flavelle had made his fortune in the meatpacking business as president of William Davies Company, which was the British Empire's largest pork packing firm.

Flavelle was chairman of the Imperial Munitions Board during World War I, and it was for reorganizing the industry that he was awarded a baronetcy in 1917.

[3] His was the last British hereditary title to be granted in the normal course to a Canadian citizen, due to the passage of the Nickle Resolution in 1919.

It is now called Flavelle House and forms part of the university's Faculty of Law.