William de Ros

William de Ros may refer to:


 * William de Ros, 1st Baron de Ros
 * William de Ros, 2nd Baron de Ros
 * William de Ros, 3rd Baron de Ros
 * William de Ros, 6th Baron de Ros
 * William Cecil, 17th Baron de Ros
 * William FitzGerald-de Ros, 23rd Baron de Ros