Uno Prii (February 28, 1924 – November 27, 2000) was an Estonian-born Canadian architect. He designed approximately 250 buildings, many in Toronto, but also around southern Ontario and the United States.
Some of his best-known works are apartment buildings in The Annex neighbourhood of Toronto, featuring outlines that make sweeping curves. These include The Vincennes at 35 Walmer Road (built 1966), Prince Arthur Towers at 20 Prince Arthur Avenue (1968), Brazil Towers at 485 Huron Street, and 44 Walmer Road (1969).