Lord May may refer to:
Baron May, a hereditary title created in 1935 George May, 1st Baron May (1871–1946), British financial expert and public servant Robert May, Baron May of Oxford (1936–2020), Australian scientist and President of the Royal Society
See also Erskine May, 1st Baron Farnborough (1815–1886), British constitutional theorist and Clerk of the House of Commons Lady May (disambiguation)