Sir Thornley Stoker, 1st Baronet

Sir William Thornley Stoker, 1st Baronet (6 March 1845 – 1 July 1912), known as Thornley Stoker, was an Irish medical writer, anatomist and surgeon. He served as chair of anatomy and president of the Royal College of Surgeons in Ireland, president of the Royal Academy of Medicine in Ireland, and professor of anatomy at the Royal Hibernian Academy. He was the brother of the novelist Bram Stoker.

Early life and education William Thornley Stoker was born on 6 March 1845 at Marino Crescent in Dublin, Ireland to Abraham Stoker (1799–1876), a senior civil servant, and Charlotte Stoker (; 1818–1901), a charity worker and social reformer. Stoker was the eldest of 7 siblings, and was the brother of the writer Bram Stoker. In 1866, Stoker obtained his medical degree from Queen's University of Ireland. Emily Stoker lived with some form of mental illness, and was cared for by Stoker's secretary. The writer Florence Dugdale was a companion of Emily Stoker and provided periodic respite care at the Stoker's Dublin home during 1906–1908. Towards the end of her life, Emily entered a nursing-home.

Stoker was the brother-in-law of Sir William Thomson through his sister Margaret Dalrymple Thomson (née Stoker).