Lady May may refer to:

People Theresa May, Baroness May of Maidenhead (born 1956), Prime Minister of the United Kingdom from 2016 to 2019 Lady May Abel Smith (1906–1994), member of the British royal family Lady May (Namibian singer) (born 1986), singer from Namibia Lady May (rapper) (born 1974), American rapper, singer, songwriter and model

Other Lady May (cartoon character), a character in the television series Tiny Toon Adventures "Lady May" (song), a song by Tyler Childers "Lady May", a song by Glim Spanky

See also The Lady of May, a 16th-century play by Philip Sidney Lord May (disambiguation)