Joseph Elijah Thompson (July 19, 1867[1] – March 16, 1941[2]) was speaker of the Legislature of Ontario from 1924 to 1926 and served as Conservative MLA for St. David and Toronto Northeast from 1919 to 1929.

[3] This was the period of the Ontario Liberal Conservative Party's rule under Howard Ferguson.

[1] After he left politics in 1929, he was named registrar for the Toronto surrogate court.

Thompson lost this appointment in 1934 and returned to the insurance business.

In 1939, he ran unsuccessfully for a seat on Toronto city council.