Joseph Burr Tyrrell, FRSC (November 1, 1858 – August 26, 1957) was a Canadian geologist, cartographer, mining consultant and historian.

He was a student at Weston Grammar School before graduating from Upper Canada College in 1876 and receiving a law degree from the University of Toronto in 1880.

[2] He led the 1893 and 1894 expeditions into the Northern Barren Lands, down the Dubawnt River, the first visit to the Kivalliq Region Barrenlands by a European since the explorations of Samuel Hearne in the 1770s.

Joseph's younger brother, James William Tyrrell, accompanied him on the expedition, which included the first European contact with the Ihalmiut, Inuit from the interior of what is today Nunavut.

[1]: 191 [7] Tyrrell retired to northeast Scarborough on the Rouge River, where he established substantial apple orchards and an interest in grafting and breeding.