William Marsh

William Marsh may refer to:


 * William Marsh (priest) (1775–1864), British priest and writer of theological publications
 * William Marsh (fencer) (1877–1959), British fencer
 * William Marsh (cricketer) (1917–1978), Welsh cricketer
 * William Henry Marsh (1827–1906), British colonial administrator
 * Billy Marsh (1917–1995), British theatrical agent
 * Stan Marsh, misreferenced as "Billy" by his grandpa Marvin Marsh
 * Willie Marsh, golfer, see Bing Crosby Handicap
 * Bill Marsh (rugby league) (1929–2002), Australian rugby league footballer
 * W. W. Marsh (William Wallace Marsh, 1835–1918), American inventor and businessman
 * William F. Marsh, served in the California legislature
 * William John Marsh (1880–1971), American musician
 * William H. Marsh (diplomat), U.S. diplomat
 * William Marsh (New Hampshire politician), state representative