Ken Traill (born 7 September 1926 in West Wylam — died 25 March 2002(2002-03-25) (aged 75) in Guiseley) was an English professional rugby league footballer of the 1940s and '50s, and coach of the 1950s, '60s and 70s, playing at representative level for Great Britain, England, and Yorkshire, and at club level for Hunslet, Bradford Northern, Halifax, and Wakefield Trinity, as a Loose forward/Lock, i.e. number 13, during the era of contested scrums, and coaching at club level for Wakefield Trinity.