Joseph Leslie Broadbent (June 3, 1891 – March 16, 1935) was a religious leader in the early stages of the Mormon fundamentalist movement.

In June 1915, he married Rula Louise Kelsch, and through his association with her family came to know John Wickersham Woolley.

This was one of the first Mormon fundamentalist tracts and was a factor in his subsequent excommunication by the LDS Church in July 1929.

In February 1935, he and a number of other fundamentalist leaders visited Millville, Utah, for a meeting with co-religionists.

According to his friend Louis Kelsch, on the day of his death Broadbent said that he had not experienced any personal vision of heavenly messengers.