Dennis Powell (12 December 1924 – 27 May 1993) was a Welsh boxer who fought between 1946 and 1954. Powell became Welsh area champion in both light heavyweight and heavyweight divisions in 1949, holding onto the heavyweight title until beaten by Tommy Farr in 1951. He remained Welsh light heavyweight champion throughout his career and in 1953 he challenged for the British light heavyweight title vacated by Randolph Turpin, taking the belt after defeating George Walker.