Nancy Sullivan may refer to:
Nancy Sullivan (American actress) (born 1969), American actress, television host and screenwriter Nancy Sullivan (English actress) (born 1985), English actress and singer Nancy Sullivan (politician) (born 1949), American politician, Maine politician and schoolteacher Nancy Sullivan (activist) (1957–2015), American anthropologist and activist Nancy Achin Sullivan (1959–2022), American politician, member of the Massachusetts Senate Nancy Sullivan (biologist), American cell biologist Nancy Benoit (1964–2007), formerly Sullivan, American professional wrestling valet and manager