Harold Wagstaff (9 May 1891 – 19 July 1939), also known by the nickname of "Waggy", was an English professional rugby league footballer who played in the 1900s, 1910s and 1920s. He played as a centre and was nicknamed the Prince of Centres. A captain of Great Britain, he also played representative rugby league for England, and Yorkshire. Wagstaff has been inducted into the Rugby Football League Hall of Fame, and the Huddersfield Giants Hall of Fame.