William Catesby may refer to:

William Catesby (died 1478), English landowner and MP for Northamptonshire, 1449, 1453 William Catesby (1450–1485), English landowner and MP for Northamptonshire, 1484 William Catesby, High Sheriff of Warwickshire in 1371 William Catesby (died 1383), MP and father of John Catesby (MP for Warwickshire)