William "Silver Billy" Beldham (5 February 1766 – 26 February 1862) was an English professional cricketer who played for numerous teams between 1782 and 1821. He was born at Wrecclesham, near Farnham in Surrey, and died at Tilford, Surrey. In some sources, his name has been given as "Beldam" or "Beldum". A right-handed batting all-rounder, he is widely recognised as one of the greatest batsmen of cricket's underarm era. Using an underarm action, he bowled pitched deliveries at a fast medium pace. He generally fielded in close catching positions, mostly at slip and sometimes played as wicket-keeper.