Leonard Marson (22 August 1918 – December 1994) was an English professional rugby league footballer who played in the 1930s, 1940s and 1950s. He played at representative level for England and Yorkshire, and at club level for Fitzwilliam Intermediates, Wakefield Trinity (Heritage № 451), and Hunslet, as a hooker or loose forward, i.e. number 9, or 13, during the era of contested scrums.