William Tyrrell may refer to:
William Tyrrell (bishop) (1807–1879), first Anglican bishop of Newcastle, New South Wales William Tyrrell, 1st Baron Tyrrell (1866–1947), British diplomat William Tyrrell (RAF officer) (1885–1968), Irish rugby international, military officer, and surgeon to George VI George William Tyrrell, Union Army officer Disappearance of William Tyrrell (born 2011), a missing boy from Australia W. C. Tyrrell (William Casper Tyrrell, 1847–1924), Texas business magnate
See also Tyrrell (surname) Terrell (surname)