Kilian O'Connor holds the C · Starter spot in USC Trojans’s offensive line room. Where he sits among the room’s front-line roles:

Kilian O'Connor, a 6'1" center from Ladera Ranch, California, played three seasons at Santa Margarita Catholic High School where he started at center and offensive guard. He redshirted in 2022 before appearing in 7 games during the 2023 season. O'Connor took the field in 8 games with 1 start in 2024, then earned a scholarship and started 7 of 8 contests at center in 2025 despite injury limitations. He returns as USC's starting center for 2026 after earning his bachelor's in Business Administration and placement on the 2025 Fall Big Ten All-Academic Team.