Caldonia (or Calvin) Fackler Johnson (October 14, 1844 – April 7, 1925) was an American businessman and philanthropist, active primarily in Knoxville, Tennessee, in the late 19th and early 20th centuries.
Born into slavery, he rose to become a prominent Knoxville racetrack and saloon owner, and by the time of his death, was one of the wealthiest African-American businessmen in the state.
He also owned several thoroughbred racehorses, one of which captured a world speed record in 1893.