R v Hopley (more commonly known as the Eastbourne manslaughter) was an 1860 legal case in Eastbourne, Sussex, England. The case concerned the death of 15-year-old Reginald Cancellor (some sources give his name as Chancellor and his age as 13 or 14) at the hands of his teacher, Thomas Hopley. Hopley used corporal punishment with the stated intention of overcoming what he perceived as stubbornness on Cancellor's part, but instead beat the boy to death.