| 24 Nov 11 | J. Mattock Joe Mattock |  West Bromwich AlbionWBA | → |  PortsmouthPOR | Loan |
| 24 Nov 11 | G. Thorne George Thorne | West Bromwich AlbionWBA | → | PortsmouthPOR | Loan |
| 24 Nov 11 | J. Mattock Joe Mattock | West Bromwich AlbionWBA | → | PortsmouthPOR | Loan |
| 24 Nov 11 | G. Thorne George Thorne | West Bromwich AlbionWBA | → | PortsmouthPOR | Loan |
| 28 Oct 11 | A. Razak Abdul Razak |  Manchester CityMNC | → | PortsmouthPOR | Loan |
| 28 Oct 11 | A. Razak Abdul Razak | Manchester CityMNC | → | PortsmouthPOR | Loan |
| 26 Sept 11 | B. Riise Bjorn Riise |  FulhamFUL | → | PortsmouthPOR | Loan |
| 26 Sept 11 | B. Riise Bjorn Riise | FulhamFUL | → | PortsmouthPOR | Loan |
| 08 Sept 11 | Lewis Stockford | PortsmouthPOR | → | SCXSalisbury CitySalisbury City | Loan |
| 31 Aug 11 | Jed Wallace | LFXLewes FCLewes FC | → | PortsmouthPOR | Undisclosed |
| 26 Aug 11 | M. Futacs Marko Futacs | XXX | → | PortsmouthPOR | Free |
| 19 Aug 11 | E. Huseklepp Erik Huseklepp | BXXBariBari | → | PortsmouthPOR | Undisclosed |
| 13 Aug 11 | B. Mwaruwari Benjani Mwaruwari | XXX | → | PortsmouthPOR | Free |
| 11 Jul 11 | G. Halford Greg Halford |  Wolverhampton WanderersWOL | → | PortsmouthPOR | Undisclosed |
| 11 Jul 11 | M. Brown Michael Brown | PortsmouthPOR | → |  Leeds UnitedLEE | Free |
| 11 Jul 11 | G. Halford Greg Halford | Wolverhampton WanderersWOL | → | PortsmouthPOR | Undisclosed |
| 08 Jul 11 | S. Henderson Stephen Henderson |  Bristol CityBRC | → | PortsmouthPOR | Undisclosed |
| 07 Jul 11 | L. Varney Luke Varney |  Derby CountyDER | → | PortsmouthPOR | Undisclosed |
| 05 Jul 11 | D. Nugent David Nugent | PortsmouthPOR | → |  Leicester CityLEI | Free |
| 01 Jul 11 | D. Norris David Norris |  Ipswich TownIPS | → | PortsmouthPOR | Free |
| 01 Jul 11 | M. Pack Marlon Pack | PortsmouthPOR | → |  Cheltenham TownCHL | Free |
| 28 Jun 11 | D. Flahavan Darryl Flahavan | PortsmouthPOR | → |  AFC BournemouthBOU | Free |
| 24 Jun 11 | J. Pearce Jason Pearce | AFC BournemouthBOU | → | PortsmouthPOR | Undisclosed |
| 24 Mar 11 | T. Kilbey Tom Kilbey | PortsmouthPOR | → |  Lincoln CityLCN | Loan |
| 18 Feb 11 | D. Cotterill David Cotterill |  Swansea CitySWA | → | PortsmouthPOR | Loan |
| 29 Jan 11 | J. Utaka John Utaka | PortsmouthPOR | → |  MontpellierMONT | Undisclosed |
| 29 Jan 11 | J. Utaka John Utaka | PortsmouthPOR | → | MontpellierMONT | Undisclosed |
| 25 Jan 11 | J. Hogg Jonathan Hogg |  Aston VillaAVL | → | PortsmouthPOR | Loan |
| 25 Jan 11 | J. Hogg Jonathan Hogg | Aston VillaAVL | → | PortsmouthPOR | Loan |
| 14 Jan 11 | R. de Laet Ritchie de Laet |  Manchester UnitedMAN | → | PortsmouthPOR | Loan |
| 14 Jan 11 | R. de Laet Ritchie de Laet | Manchester UnitedMAN | → | PortsmouthPOR | Loan |
| 13 Jan 11 | G. Halford Greg Halford | Wolverhampton WanderersWOL | → | PortsmouthPOR | Loan |
| 13 Jan 11 | G. Halford Greg Halford | Wolverhampton WanderersWOL | → | PortsmouthPOR | Loan |
| 07 Jan 11 | M. Ritchie Matt Ritchie | PortsmouthPOR | → |  Swindon TownSWI | Undisclosed |
| 02 Jan 11 | T. Smith Tommy Smith | PortsmouthPOR | → |  Queens Park RangersQPR | Undisclosed |
| 01 Jan 11 | L. Lawrence Liam Lawrence |  Stoke CitySTK | → | PortsmouthPOR | Undisclosed |
| 01 Jan 11 | L. Lawrence Liam Lawrence | Stoke CitySTK | → | PortsmouthPOR | Undisclosed |