Quaglia is an Italian surname. Notable people with the surname include:
Colleen Quaglia (active 21st century), National level swimmer Alberto Quaglia (active early 20th century), Italian soccer coach Fernando Quaglia (active early 19th century), Italian painter of portrait miniatures Franca Quaglia, Italian women's downhill skier Gerolamo Quaglia (1902–1985), Italian wrestler and Olympic medalist in Greco-Roman wrestling Giovanni Quaglia (born 1947), politician in Piedmont, Italy Giovanni Quaglia, founder of the Italian company SO.RI.MA. (Society for Maritime Recovery) Hélio Quaglia Barbosa (1941–2008), Brazilian judge Léonhard Quaglia, French ice hockey player at the 1920 and 1928 Winter Olympics Marco Quaglia, Italian actor (Gasoline, The Best Day of My Life) Martín Quaglia, husband of Colombian television actress Ana María Orozco Massimo Quaglia, Italian film editor (The Star Maker, Malèna, La sconosciuta) Roberto Quaglia (born 1962), Italian science fiction writer
See also Madonna of the Quail (Italian: Madonna della Quaglia), a Gothic painting generally attributed to Pisanello