| Libero Bertagnolli | |
| Birth Date: | 13 November 1914 |
| Birth Place: | Benld, Illinois, U.S. |
| Death Place: | Bloomington, Illinois, U.S. |
| Player Years1: | 1935–1937 |
| Player Team1: | Washington University |
| Player Years2: | 1942 |
| Player Team2: | Chicago Cardinals |
| Player Team3: | Great Lakes Navy |
| Player Years4: | 1945 |
| Player Team4: | Chicago Cardinals |
| Player Positions: | Guard |
| Coach Years1: | 1951–1953 |
| Coach Team1: | Illinois Wesleyan |
| Coach Years2: | ? |
| Coach Team2: | Bloomington HS (IL) |
| Overall Record: | 11–12–2 (college) |
| Championships: | 1 CCI (1951) |
Libero Lorenz "Bert" Bertagnolli (November 13, 1914 – September 14, 1992) was an American football player and coach. He played college football at Washington University in St. Louis and professionally in the National Football League (NFL) with the Chicago Bears, in 1942 and 1945.[1] Bertagnolli was the head football coach at Illinois Wesleyan University in Bloomington, Illinois from 1951 to 1953, compiling a record of 11–12–2. He served in the United States Navy during World War II. Bertagnolli later coached football, swimming, and tennis, at Bloomington High School in Bloomington, Illinois. He died on September 14, 1992, at BroMenn Regional Medical Center, in Bloomington, Illinois.[2]