William Salusbury

William Salusbury or Salesbury may refer to:


 * William Salesbury (c. 1520–c. 1584), Welsh scholar
 * William Salesbury (of Rhug) (1580–1660), Welsh privateer
 * William Salusbury (MP) (1519–1559), MP for Barnstaple
 * Sir William Salusbury-Trelawny, 8th Baronet (1781–1856), MP for Cornwall