title: William de Ferrers
text: # William de Ferrers
  
  William de Ferrers or Guillaume de Ferrières may refer to:
  
  * William de Ferrers, 3rd Earl of Derby (d. 1190)
  * William de Ferrers, 4th Earl of Derby (c. 1198–c. 1247)
  * William de Ferrers, 5th Earl of Derby (1193–1254)
  * Guillaume de Ferrières (c. 1150 – ?April 1204), the Vidame de Chartres, a French trouvère
  