Gemma is a surname. Notable people with the name include:
Alfred A. Gemma (born 1939), American politician Andrea Gemma (1931–2019), Italian Roman Catholic bishop Chiara Maria Gemma (born 1968), Italian politician Cornelius Gemma (1535–1578), Dutch physician, astronomer and astrologer Giuliano Gemma, (1938–2013), Italian actor Roberta Gemma (born 1980), Italian actress Vera Gemma (born 1970), Italian film actress
See also Gemma (given name)