William Crosbie
William, Willie, Will or Bill Crosbie may refer to:
- William Crosbie (British [Army officer)], British general
- William Crosbie (artist), Scottish artist
- William Crosbie, [1st Earl of Glandore], Irish politician
- William Francis Crosbie, Irish member of parliament
- William Crosbie (engineer), engineer and transportation planner in New Jersey
- Sir William Crosbie, [8th Baronet]