Quinn signed for Sheffield United in 2005 and graduated from the Sheffield United Academy, he made his first team debut for the Blades in a League Cup win at Shrewsbury Town on 20 September 2005.

Quinn spent some of the 2005–06 season on loan with Milton Keynes Dons and Rotherham United respectively, becoming a fan favourite at The Millers where his performances helped them to avoid relegation.

Quinn made his Premiership debut for the Blades against Charlton Athletic, and could have almost scored within the first 40 seconds of the game.
In his second appearance, a match against Aston Villa at Bramall Lane, he did score his first goal for the club.
Quinn ended the season by winning the young player of the season award and was rewarded with a new contract.
Sheffield United warded off interest allegedly from numerous Championship clubs during the summer 2011 transfer window, with Quinn being made aware of an offer – rejected by Sheffield United – from Blackpool (who also signed Daniel Bogdanović) by his agent.
By 9 April 2012, Quinn provided more assists (14) than any other player in League One.
He also scored four goals in the 2011–12 season.
Quinn signed for Sheffield United in 2005 and graduated from the Sheffield United Academy, he made his first team debut for the Blades in a League Cup win at Shrewsbury Town on 20 September 2005.
Quinn spent some of the 2005–06 season on loan with Milton Keynes Dons and Rotherham United respectively, becoming a fan favourite at The Millers where his performances helped them to avoid relegation.
Quinn made his Premiership debut for the Blades against Charlton Athletic, and could have almost scored within the first 40 seconds of the game. In his second appearance, a match against Aston Villa at Bramall Lane, he did score his first goal for the club. Quinn ended the season by winning the young player of the season award and was rewarded with a new contract. Sheffield United warded off interest allegedly from numerous Championship clubs during the summer 2011 transfer window, with Quinn being made aware of an offer – rejected by Sheffield United – from Blackpool (who also signed Daniel Bogdanović) by his agent. By 9 April 2012, Quinn provided more assists (14) than any other player in League One. He also scored four goals in the 2011–12 season.
Stephen Quinn