| 31 Aug 12 | S. Dobbie Stephen Dobbie |  Swansea CitySWA | → |  Brighton & Hove AlbionBHA | Undisclosed |
| 31 Aug 12 | S. Dobbie Stephen Dobbie | Swansea CitySWA | → | Brighton & Hove AlbionBHA | Undisclosed |
| 31 Aug 12 | A. Orlandi Andrea Orlandi | Swansea CitySWA | → | Brighton & Hove AlbionBHA | Undisclosed |
| 31 Aug 12 | A. Orlandi Andrea Orlandi | Swansea CitySWA | → | Brighton & Hove AlbionBHA | Undisclosed |
| 02 Aug 12 | A. Crofts Andrew Crofts |  Norwich CityNOR | → | Brighton & Hove AlbionBHA | Undisclosed |
| 02 Aug 12 | A. Crofts Andrew Crofts | Norwich CityNOR | → | Brighton & Hove AlbionBHA | Undisclosed |
| 06 Jul 12 | W. Bridge Wayne Bridge |  Manchester CityMNC | → | Brighton & Hove AlbionBHA | Loan |
| 06 Jul 12 | W. Bridge Wayne Bridge | Manchester CityMNC | → | Brighton & Hove AlbionBHA | Loan |
| 01 Jul 12 | T. Kuszczak Tomasz Kuszczak |  Manchester UnitedMAN | → | Brighton & Hove AlbionBHA | Free |
| 01 Jul 12 | T. Kuszczak Tomasz Kuszczak | Manchester UnitedMAN | → | Brighton & Hove AlbionBHA | Free |
| 17 Feb 12 | G. Assulin Gai Yigaal Assulin | Manchester CityMNC | → | Brighton & Hove AlbionBHA | Loan |
| 17 Feb 12 | A. Razak Abdul Razak | Manchester CityMNC | → | Brighton & Hove AlbionBHA | Loan |
| 17 Feb 12 | G. Assulin Gai Yigaal Assulin | Manchester CityMNC | → | Brighton & Hove AlbionBHA | Loan |
| 17 Feb 12 | A. Razak Abdul Razak | Manchester CityMNC | → | Brighton & Hove AlbionBHA | Loan |
| 31 Jan 12 | G. Jara Gonzalo Jara |  West Bromwich AlbionWBA | → | Brighton & Hove AlbionBHA | Loan |
| 31 Jan 12 | J. Mattock Joe Mattock | West Bromwich AlbionWBA | → | Brighton & Hove AlbionBHA | Loan |
| 31 Jan 12 | G. Jara Gonzalo Jara | West Bromwich AlbionWBA | → | Brighton & Hove AlbionBHA | Loan |
| 31 Jan 12 | J. Mattock Joe Mattock | West Bromwich AlbionWBA | → | Brighton & Hove AlbionBHA | Loan |