A single diver represented Italy. It was Italy's second appearance in diving, with Carlo Bonfanti being the nation's only diver both in 1912 and 1908. Bonfanti did not reach the final in either of his two events.
Rankings given are within the diver's heat.
Two swimmers competed for Italy at the 1912 Games. It was the third time the nation appeared in swimming, and both swimmers had previously competed in 1908.
Neither Massa nor Baiardo was able to advance to an event final. Massa's second place finish in his initial heat of the 100 metre freestyle was the only race in which either was not eliminated. Massa did not appear for his quarterfinal race, but was allowed to compete in the semifinals.
Ranks given for each swimmer are within the heat.
14 athletes represented Italy. It was the nation's third appearance in athletics. Fernando Altimani's bronze medal in the 10 kilometre racewalk was Italy's best result and only medal in the sport.
Ranks given are within that athlete's heat for running events.