Tyssul "Tuss" Griffiths (6 June 1919 – 25 August 1978) was a Welsh rugby union, and professional rugby league footballer who played in the 1940s and 1950s.
He played representative level rugby union for Wales XV, and at club level for Newport RFC, as a full-back, and representative level rugby league for Wales, and at club level for Hunslet, Doncaster (Heritage ? 12), Halifax (Heritage ? 647), and Dewsbury, as a fullback.