Raleigh Leonidas Aitchison (December 5, 1887 – September 26, 1958), nicknamed "Redskin" was a pitcher in Major League Baseball from 1911 to 1915. He continued to pitch in the minor leagues through 1923 with an assortment of teams.
After his retirement from baseball he worked for 18 years for the Columbus, Kansas police department and was a deputy sheriff for Cherokee County, Kansas.