| 24 Nov 11 | A. Halliday Andy Halliday |  MiddlesbroughMID | → |  WalsallWAL | Loan |
| 24 Nov 11 | Adam Reach | MiddlesbroughMID | → |  DarlingtonDARL | Loan |
| 17 Oct 11 | B. Ogbeche Bartholomew Ogbeche | XXX | → | MiddlesbroughMID | Free |
| 14 Oct 11 | L. Dobie Luke Dobie | MiddlesbroughMID | → |  Accrington StanleyACCR | Loan |
| 16 Sept 11 | A. Nimely Alex Nimely |  Manchester CityMNC | → | MiddlesbroughMID | Loan |
| 16 Sept 11 | A. Nimely Alex Nimely | Manchester CityMNC | → | MiddlesbroughMID | Loan |
| 31 Aug 11 | J. Franks Jonathan Franks | MiddlesbroughMID | → |  Oxford UnitedOXF | Loan |
| 25 Aug 11 | J. Grounds Jonathan Grounds | MiddlesbroughMID | → |  ChesterfieldCHES | Loan |
| 23 Aug 11 | C. Park Cameron Park | MiddlesbroughMID | → |  BarnsleyBAR | Loan |
| 23 Aug 11 | L. Miller Lee Miller | MiddlesbroughMID | → |  Carlisle UnitedCAR | Undisclosed |
| 18 Aug 11 | F. Haroun Faris Haroun | XXX | → | MiddlesbroughMID | Free |
| 03 Aug 11 | C. Ikeme Carl Ikeme |  Wolverhampton WanderersWOL | → | MiddlesbroughMID | Loan |
| 03 Aug 11 | L. Lita Leroy Lita | MiddlesbroughMID | → |  Swansea CitySWA | 1750000 |
| 03 Aug 11 | C. Ikeme Carl Ikeme | Wolverhampton WanderersWOL | → | MiddlesbroughMID | Loan |
| 03 Aug 11 | L. Lita Leroy Lita | MiddlesbroughMID | → | Swansea CitySWA | 1750000 |
| 02 Aug 11 | B. Gibson Ben Gibson | MiddlesbroughMID | → |  Plymouth ArgylePLY | Loan |
| 22 Jul 11 | D. Digard Didier Digard | MiddlesbroughMID | → |  NiceNICE | Undisclosed |
| 22 Jul 11 | D. Digard Didier Digard | MiddlesbroughMID | → | NiceNICE | Undisclosed |
| 18 Jul 11 | M. Martin Malaury Martin |  BlackpoolBLP | → | MiddlesbroughMID | Free |
| 09 Jul 11 | K. Boyd Kris Boyd | MiddlesbroughMID | → | EXXEskisehirsporESK | Free |
| 04 Jul 11 | A. Taylor Andrew Taylor | MiddlesbroughMID | → |  Cardiff CityCAR | Free |
| 24 May 11 | W. Flood Willo Flood | MiddlesbroughMID | → |  Dundee UnitedDUN | Free |
| 24 May 11 | W. Flood Willo Flood | MiddlesbroughMID | → | Dundee UnitedDUN | Free |
| 17 May 11 | Luke Dobie |  EvertonEVE | → | MiddlesbroughMID | Undisclosed |
| 17 May 11 | Luke Dobie | EvertonEVE | → | MiddlesbroughMID | Undisclosed |
| 09 May 11 | C. Main Curtis Main | DarlingtonDARL | → | MiddlesbroughMID | Free |
| 08 Mar 11 | K. Boyd Kris Boyd | MiddlesbroughMID | → |  Nottingham ForestFOR | Loan |
| 08 Mar 11 | P. Smith Paul Smith | Nottingham ForestFOR | → | MiddlesbroughMID | Loan |
| 18 Feb 11 | A. Davies Andrew Davies |  Stoke CitySTK | → | MiddlesbroughMID | Loan |
| 18 Feb 11 | A. Davies Andrew Davies | Stoke CitySTK | → | MiddlesbroughMID | Loan |
| 31 Jan 11 | M. Zemmama Merouane Zemmama |  HibernianHIBS | → | MiddlesbroughMID | Undisclosed |
| 31 Jan 11 | M. Zemmama Merouane Zemmama | HibernianHIBS | → | MiddlesbroughMID | Undisclosed |
| 31 Jan 11 | M. Haas Maximilian Haas | BMIBayern Munich IIBayern Munich II | → | MiddlesbroughMID | Undisclosed |
| 28 Jan 11 | A. Mido Ahmed Hossam Mido | MiddlesbroughMID | → | ZXXZamalekZamalek | Loan |
| 28 Jan 11 | L. Miller Lee Miller | MiddlesbroughMID | → |  Scunthorpe UnitedSCU | Loan |
| 25 Jan 11 | G. O'Neil Gary O'Neil | MiddlesbroughMID | → |  West Ham UnitedWHU | Undisclosed |
| 25 Jan 11 | G. O'Neil Gary O'Neil | MiddlesbroughMID | → | West Ham UnitedWHU | Undisclosed |
| 20 Jan 11 | D. Wheater David Wheater | MiddlesbroughMID | → |  Bolton WanderersBOL | Undisclosed |
| 20 Jan 11 | D. Wheater David Wheater | MiddlesbroughMID | → | Bolton WanderersBOL | Undisclosed |
| 06 Jan 11 | L. Miller Lee Miller | MiddlesbroughMID | → |  Notts CountyNOTT | Loan |