Addy is a surname. Notable people with the surname include:
Bob Addy (1845–1910), American baseball player
Danny Addy, British professional rugby league player
David Addy (born 1990), Ghanaian footballer
Gifty Addy (born 1984), Ghanaian sprinter
Jangy Addy (born 1985), Liberian decathlete
Lee Addy (born 1990), Ghanaian footballer
Mariama Ewurama Addy (died 2014), Ghanaian scientist
Mark Addy (born 1964), British actor
Mark Diamond Addy, Ghanaian politician
Mercy Addy (born 1964), Ghanaian sprinter
Mustapha Tettey Addy, Ghanaian drummer and ethnomusicologist
Obo Addy (1936–2012), Ghanaian drummer and dancer
Yacub Addy (born 1931), Ghanaian drummer, composer, choreographer and educator
Wesley Addy (1913–1996), American actor
