Roland Herbert 'Roy' Millen (12 October 1893 – 30 May 1946) was an Australian rules footballer who played for Fitzroy in the Victorian Football League (VFL). Although primarily a wingman, Millen was also used as a centreman at times during his career. He was a member of Fitzroy's premiership team in 1917 and participated in their losing Grand Final the following season. In the 1929 VFL season he officiated as a field umpire for one match.