| Pietro Grosso | |
| Birth Date: | 23 December 1923 |
| Birth Place: | Roncade, Kingdom of Italy |
| Position: | Midfielder |
| Years1: | 1941–1946 |
| Years2: | 1946–1948 |
| Years3: | 1948–1951 |
| Years4: | 1951–1952 |
| Years5: | 1952–1954 |
| Years6: | 1954–1957 |
| Years7: | 1957 |
| Clubs7: | Brescia |
| Caps2: | 71 |
| Goals2: | 0 |
| Caps3: | 99 |
| Goals3: | 1 |
| Caps4: | 32 |
| Goals4: | 0 |
| Caps5: | 55 |
| Goals5: | 0 |
| Caps6: | 80 |
| Goals6: | 0 |
| Caps7: | 2 |
| Goals7: | 0 |
| Nationalyears1: | 1951–1953 |
| Nationalteam1: | Italy |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
Pietro Grosso (pronounced as /it/; 23 December 1923 – 3 October 1957) was an Italian professional footballer who played as a midfielder.
Gross played for 11 seasons (337 games, 1 goal) in the Italian Serie A with Vicenza Calcio, U.S. Triestina Calcio, A.C. Milan, A.S. Roma and A.C. Torino.
Gross made his Italy national football team debut on 25 November 1951 in a game against Switzerland.