Duah is a surname. Notable people with the surname include:
Abu Duah (born 1978), Ghanaian sprinter Alexandra Duah (died 2000), Ghanaian actress Emmanuel Duah (born 1976), Ghanaian footballer Jürgen Duah (born 1985), German footballer Kwadwo Duah (born 1997), Swiss footballer Nana Arhin Duah (born 1980), Ghanaian footballer Solomon Duah (born 1993), Finnish footballer