William Davy SL (died 1780) was an English barrister during the 18th century. Known as "Bull" Davy, he was noted as quick-witted, with a ready sense of humour, but, according to one author, relatively unscrupulous. According to Humphry William Woolrych, he was originally either a grocer or a pharmacist before being declared bankrupt and learning the doctrines around nisi prius, for which much study was not required. He was admitted to the Inner Temple on 16 October 1741. Davy died on 13 December 1780, and was buried in Newington Butts.