Mark Reeves Bacon (February 29, 1852 – August 20, 1941) was a lawyer and politician from the U.S. state of Michigan. Bacon was born in Phillipstown, Illinois, and attended the public schools there. He taught school at the Academy in Bolivar, Missouri in 1871. He studied law, was admitted to the bar on July 4, 1876, and commenced practice in Fairfield, Illinois. He was the city attorney of Fairfield and a delegate to several State conventions. He died at his winter home in Pasadena, California, aged 89, and is interred at San Gabriel Cemetery, San Gabriel, California.