Blood is a surname deriving from the Welsh surname Lloyd ('ap Lloyd' - 'of Lloyd'). Notable people with the surname include:

Aretas Blood (1816–1897), American railroad innovator Archer Blood (1923–2004), American diplomat Benjamin Paul Blood (1832–1919), American philosopher and poet Ben Blood (born 1989), American professional ice hockey player Bindon Blood (1842–1940), British military commander Carol Blood (born 1961), American politician from Nebraska C. L. Blood ( 1867–1890), American physician Emma Blood (1853–1932), American philanthropist Ernest Blood (1872–1955), American basketball coach Gertrude Elizabeth Blood (1857–1911), Irish-born author, playwright, columnist, editor and socialite Henry H. Blood (1872–1942), American businessman and two-term governor of Utah Holcroft Blood ( 1657–1707), Anglo-Irish soldier James Blood (1833–1885), American Union Army officer Maurice Blood (1870–1940), British sport shooter Nick Blood (born 1982), English actor, director and producer Richard Henry Blood (born 1953), American professional wrestler better known as Ricky "The Dragon" Steamboat Richard Henry Blood Jr. (born 1987), American professional wrestler better known as Ricky Steamboat Jr. Robert O. Blood (1887–1975), American physician and politician from New Hampshire Rogers Blood (1922–1944), United States Marine Corps officer and posthumous Silver Star recipient Thomas Blood (1618–1680), Irish colonel who tried to steal the Crown Jewels of England Cherish Violet Blood (born 1981), Kainai actress and storyteller from Canada