Mario Massa (May 29, 1892 <unk> February 16, 1956) bụ onye Italiantali na-egwu mmiri na-egwu mmiri na-asọmpi na 1908 Summer Olympics, na 1912 Summer Olympics, na 1920 Summer Olympics. A mụrụ ya na Nervi. N'afọ 1908, a chụpụrụ ya n'agba nke mbụ n'asọmpi 400 mita. Mgbe afọ anọ gachara, a chụpụrụ ya n'asọmpi 100m freestyle
Ọ dị mma. O sonyekwara n'asọmpi 400 mita na asọmpi 1500 mita mana n'ime ha abụọ, a chụpụrụ ya na agba nke mbụ. Na Egwuregwu 1920 ọ bụ onye otu ndị otu relay nke Italy nke mechara nke ise na asọmpi 4 x 200 mita freestyle relay. N'asọmpi 100 mita freestyle, a chụpụrụ ya na agba nke mbụ.