Robert Bruce Macon (July 6, 1859 – October 9, 1925) was a U.S. Representative from Arkansas. Macon was born near Trenton, Arkansas, and was left an orphan at the age of nine. He attended the public schools and studied at home, and engaged in agricultural pursuits. He studied law and was admitted to the bar in 1891. He commenced practice in Helena, Arkansas. He served as member of the Arkansas House of Representatives from 1883 to 1887, as clerk of the circuit court from 1892 to 1896, and as prosecuting attorney for the first judicial district from 1898 to 1902.