Sir Henry Cosmo Orme Bonsor, 1st Baronet, DL (2 September 1848 – 4 December 1929) was an English brewer and businessman and a Conservative politician who sat in the House of Commons from 1885 to 1900. Bonsor was the son of Joseph Bonsor of Polesden Lacey. He was educated at Eton and with his father and brother became a partner in the brewing firm of Combe & Co. He was a director of the Bank of England, and a Governor of Guy's Hospital. In 1898 Bonsor organised the brewery amalgamation to form Watney Combe & Reid, of which he remained chairman until 1928.