The 1946 Illinois Fighting Illini football team was an American football team that represented the University of Illinois in the 1946 Big Nine Conference football season. Led by fifth-year head coach Ray Eliot, the Illini compiled an 8–2 record (6–1 against Big Nine opponents) and won the Big Nine championship. They finished the season ranked No. 5 in the final AP Poll and were invited to play in the 1947 Rose Bowl where they defeated No. 4 UCLA, 45–14. Center Mac Wenskunas was the team captain. The team played its home games at Memorial Stadium in Champaign, Illinois.