Sir [[Geoffrey Jefferson]] FRS (1886–1961) was a British neurologist and pioneering neurosurgeon. He was educated in Manchester, England, obtaining his medical degree in 1909. He became a fellow of the Royal College of Surgeons two years later. He married in 1914, and moved to Canada. On the outbreak of World War I, he returned to [[Europe]] and worked at the Anglo-Russian Hospital in Petrograd, Russia, and then with the Royal Army Medical Corps in France.

After the war, he returned to [[Manchester]], working at the [[Salford Royal NHS Foundation Trust]]. It was here, in 1925 that Jefferson performed the first successful embolectomy in England. By 1934, he was a neurosurgeon at the [[Manchester]] Royal Infirmary, becoming the UK's first professor of neurosurgery at the University of Manchester five years later.