The 2012–13 season is Middlesbrough's fourth consecutive season in the Championship.

Last updated: June 2012Source: Competitive match reports.

Competitive matches only Matches started as captain only Country: FIFA nationality; No.

: Squad number; P: Position; Name: Player name; No.

Key: (H) = League Home, (A) = League Away, (FA) = FA Cup, (CC) = League Cup