Addy is a surname. Notable people with the surname include:
Bob Addy (1845–1910), American baseball playerDanny Addy, British professional rugby league playerDavid Addy (born 1990), Ghanaian footballerGifty Addy (born 1984), Ghanaian sprinterJangy Addy (born 1985), Liberian decathleteLee Addy (born 1990), Ghanaian footballerMariama Ewurama Addy (died 2014), Ghanaian scientistMark Addy (born 1964), British actorMark Diamond Addy, Ghanaian politicianMercy Addy (born 1964), Ghanaian sprinterMustapha Tettey Addy, Ghanaian drummer and ethnomusicologistObo Addy (1936–2012), Ghanaian drummer and dancerYacub Addy (born 1931), Ghanaian drummer, composer, choreographer and educatorWesley Addy (1913–1996), American actor