Costamagna
Costamagna is a family name for the following people:
- Alejandra Costamagna (* 1970), Chilean writer and journalist
- Eugenio Camillo Costamagna (1864–1919), Italian journalist and the editor of Gazzetta dello Sport
- Giacomo Costamagna (1846–1921), Italian Salesian of Don Bosco, religious priest, Roman Catholic titular bishop and apostolic vicar in Ecuador