John McCaul (March 7, 1807 – April 16, 1887) was an Irish-born Canadian educator, theologian, and the second president of the University of Toronto from 1848 to 1853.
During the Trent Affair of 1862, William Mulock asked John McCaul as the head of the college to call a student meeting that led to the formation of the University Company of volunteers, later K Company of the Queen's Own Rifles.
McCaul was also a dedicated musician and was president of the Toronto Philharmonic Society from 1845 to 1847.