| Tullio Grassi | |
| Birth Date: | 5 February 1910 |
| Position: | Forward |
| Years1: | 1929–1930 |
| Clubs1: | Chiasso |
| Years2: | 1930–1932 |
| Clubs2: | Grasshopper Club Zürich |
| Years3: | 1938–1939 |
| Clubs3: | Lugano |
| Nationalyears1: | 1929–1938 |
| Nationalcaps1: | 7 |
| Nationalgoals1: | 2 |
| Manageryears1: | 1943–1945 |
| Managerclubs1: | Chiasso |
| Manageryears2: | 1949–1951 |
| Managerclubs2: | Chiasso |
| Manageryears3: | 1951–1952 |
| Managerclubs3: | Lugano |
| Manageryears4: | 1955–1959 |
| Managerclubs4: | Chiasso |
| Manageryears5: | 1959–1960 |
| Managerclubs5: | Lugano |
Tullio Grassi (5 February 1910 – 8 November 1985) was a Swiss football player and coach who played for Switzerland in the 1938 FIFA World Cup.[1] He also played for FC Chiasso, Grasshopper Club Zürich, and FC Lugano.