| 02 Sept 13 | A. N'Gando Axel N'Gando |  Stade RennaisREN | → |  AJ AuxerreAUX | Loan |
| 02 Sept 13 | D. Aleksic Danijel Aleksic | Stade RennaisREN | → |  ArlesARL | Loan |
| 02 Sept 13 | M. Erdinç Mevlut Erdinç | Stade RennaisREN | → |  Saint-EtienneASSE | Undisclosed |
| 02 Sept 13 | S. Romero Silvio Romero |  LanúsLAN | → | Stade RennaisREN | Undisclosed |
| 02 Sept 13 | S. Romero Silvio Romero | LanúsLAN | → | Stade RennaisREN | Undisclosed |
| 31 Aug 13 | K. Théophile-Catherine Kévin Théophile-Catherine | Stade RennaisREN | → |  Cardiff CityCAR | Undisclosed |
| 31 Aug 13 | S. Romero Silvio Romero | LanúsLAN | → | Stade RennaisREN | Loan |
| 31 Aug 13 | S. Romero Silvio Romero | LanúsLAN | → | Stade RennaisREN | Loan |
| 31 Aug 13 | F. Kadir Foued Kadir |  MarseilleMAR | → | Stade RennaisREN | Loan |
| 31 Aug 13 | É. Conceição Émerson Conceição |  TrabzonsporTRAB | → | Stade RennaisREN | Free |
| 31 Aug 13 | K. Théophile-Catherine Kévin Théophile-Catherine | Stade RennaisREN | → | Cardiff CityCAR | Undisclosed |
| 30 Aug 13 | C. M'Bengue Cheikh M'Bengue |  ToulouseTOUL | → | Stade RennaisREN | Undisclosed |
| 27 Aug 13 | D. Foulquier Dimitri Foulquier | Stade RennaisREN | → |  GranadaGCF | Loan |
| 27 Aug 13 | D. Foulquier Dimitri Foulquier | Stade RennaisREN | → | GranadaGCF | Loan |
| 26 Aug 13 | Y. Jebbour Yassine Jebbour | Stade RennaisREN | → |  MontpellierMONT | Undisclosed |
| 23 Aug 13 | A. Sané Abdoulaye Sané | Stade RennaisREN | → |  Stade LavalSLFC | Loan |
| 22 Aug 13 | S. Diallo Sadio Diallo | Stade RennaisREN | → |  LorientLOR | Loan |
| 21 Aug 13 | S. Diallo Sadio Diallo | Stade RennaisREN | → | LorientLOR | Loan |
| 07 Aug 13 | Chris Mavinga | Stade RennaisREN | → |  Rubin KazanRUB | Undisclosed |
| 07 Aug 13 | V. Montaño Victor Montaño | Stade RennaisREN | → | MontpellierMONT | 900000 |
| 07 Aug 13 | L. Kitambala Lynel Kitambala | Stade RennaisREN | → | AJ AuxerreAUX | Loan |
| 26 Jul 13 | N. Oliveira Nélson Oliveira |  BenficaBEN | → | Stade RennaisREN | Loan |
| 11 Jul 13 | Franck Hery | Stade RennaisREN | → | VOXVannes OCVannes OC | Loan |
| 01 Jul 13 | John Verhoek | Stade RennaisREN | → |  St PauliSTP | Undisclosed |
| 01 Jul 13 | J. Makoun Jean Makoun |  Aston VillaAVL | → | Stade RennaisREN | Undisclosed |
| 01 Jul 13 | Y. Brahimi Yacine Brahimi | Stade RennaisREN | → | GranadaGCF | 4000000 |
| 01 Jul 13 | Y. Brahimi Yacine Brahimi | Stade RennaisREN | → | GranadaGCF | 4000000 |
| 01 Jul 13 | J. Makoun Jean Makoun | Aston VillaAVL | → | Stade RennaisREN | Undisclosed |
| 01 Jul 13 | S. Armand Sylvain Armand |  Paris Saint-Germain PSG | → | Stade RennaisREN | Free |
| 29 May 13 | K. Beauverger Kevin Beauverger | Stade RennaisREN | → | LorientLOR | Free |
| 31 Jan 13 | A. Diarra Alou Diarra |  West Ham UnitedWHU | → | Stade RennaisREN | Loan |
| 31 Jan 13 | A. Diarra Alou Diarra | West Ham UnitedWHU | → | Stade RennaisREN | Loan |
| 24 Jan 13 | Y. M'vila Yann M'vila | Stade RennaisREN | → | Rubin KazanRUB | Undisclosed |
| 22 Jan 13 | Y. Jebbour Yassine Jebbour | Stade RennaisREN | → |  AS Nancy LorraineASNL | Loan |
| 03 Jan 13 | J. Mensah John Mensah | XXX | → | Stade RennaisREN | Free |