William Lodewyk Crowther FRCS (15 April 1817 − 12 April 1885) was a Tasmanian politician, who was Premier of Tasmania from 20 December 1878 to 29 October 1879. His careers in medicine, politics, and business were overshadowed in modern times by his role in the unsanctioned exhumation and decapitation of William Lanne’s body. Lanne was believed to be the last “full-blooded” Aboriginal Tasmanian male and after the exhumation, his skull was sent by Crowther to the Royal College of Surgeons in London for preservation.