(George) Ernest Spero, later Spears, (2 March 1894 – 7 January 1960) was a British physician, author, journalist, businessman and politician. He served as a Liberal MP in 1923–24, and a Labour MP from 1929–30, when he resigned his seat ahead of a court case and bankruptcy proceedings. He left the country for the United States, where he changed his name and became a naturalised citizen, practising as an ophthalmologist. On 9 April 1930 he informed his local Labour party that he was resigning from parliament through appointment as Steward of the Chiltern Hundreds, citing ill health.