William Ferrers (disambiguation)
William Ferrers is the name of the following people:
- William Ferrers (around 1240–1287), English nobleman
- William de Ferrers, 3rd Earl of Derby († 1190), Anglo-Norman nobleman
- William de Ferrers, 4th Earl of Derby (around 1162–1247), English magnate
- William de Ferrers, 5th Earl of Derby (around 1200–1254), English magnate
- William Ferrers, 1st Baron Ferrers of Groby (1272-1325), English nobleman
- William Ferrers, 3rd Baron Ferrers of Groby (1333-1371), English nobleman
- William Ferrers, 5th Baron Ferrers of Groby (1372–1445), English nobleman
- William Ferrers, 7th Baron Ferrers of Chartley (around 1412–1450), English nobleman