William Wallace Hayward Nash (22 September 1884 – 24 July 1977) was an English cricketer.
Nash's batting style is unknown.
He was born at Quedgeley, Gloucestershire.
Nash made his first-class debut for Gloucestershire against Cambridge University in 1905.
He made two further first-class appearances for the county, both in the 1906 County Championship, against Kent and Sussex.
In his three first-class matches for Gloucestershire, he scored a total of 81 runs at an average of 16.20, with a high score of 34.He died at Minchinhampton, Gloucestershire, on 24 July 1971.