Quinn accepted the offer to attend Notre Dame, where he set 36 Fighting Irish records during his four seasons with the team.
There were ten career records, twelve single-season records, four single-game records and ten miscellaneous records broken by Quinn throughout those four years, including the record for career pass attempts with 1,602; completions with 929; yards-per-game with 239.6; touchdown passes with 95, and the Irish's lowest interception percentage with 2.43.
Coming into the draft Quinn was considered to be one of the top players in the country, and was invited to the draft.
Before the draft started, Quinn was labeled as a "franchise quarterback in the mold of Carson Palmer." Quinn was originally placed third on the Browns' depth chart behind Charlie Frye and Derek Anderson.
However, it was announced five days before their Week 10 Monday Night Football game against the Baltimore Ravens, that Quinn was once again being awarded the starting quarterback position.
Though he struggled in his first game back, as the Browns were shut out 16–0, Quinn followed it up in Week 11 with his best professional outing yet, throwing for 304 yards with 4 touchdowns against the Detroit Lions.
On December 30, 2007, when Anderson hurt his pinky and wrist, Quinn made his official NFL debut in the Browns' final game of the season against the San Francisco 49ers.However, he went on to win the next game against the Buffalo Bills, but he broke his finger during this victory, and though he tried to play through it during the next game against the Houston Texans, he announced on November 25 that he would have surgery, sidelining him for the rest of the 2008 season.Soon after the season was over, Romeo Crennel was fired as head coach and was replaced by former New York Jets coach Eric Mangini, who was unsure of who would be the Browns's starting quarterback.Quinn helped his team post an 8–3 record and played in the U. Quinn was named an All-Conference player in baseball as a junior and lettered three times and was a part of the 2001 State Championship team.He was a member of Young Life, the Rock Solid Club, and Who's Who Among America High School Students.
He played college football at Notre Dame and was drafted by the Cleveland Browns in the first round of the 2007 NFL Draft. He has an older sister, Laura Quinn, who is the wife of former NFL and Ohio State linebacker A. Hawk, and a younger sister, Kelly Katherine Quinn, who is married to NHL defenseman Jack Johnson.