| 21 Oct 14 | D. Johnson Danny Johnson |  Cardiff CityCAR | → |  Tranmere RoversTRN | Loan |
| 24 Sept 14 | R. Morrison Ravel Morrison |  West Ham UnitedWHU | → | Cardiff CityCAR | Loan |
| 24 Sept 14 | R. Morrison Ravel Morrison | West Ham UnitedWHU | → | Cardiff CityCAR | Loan |
| 19 Sept 14 | R. Healey Rhys Healey | Cardiff CityCAR | → |  Colchester UnitedCOL | Loan |
| 01 Sept 14 | M. Hudson Mark Hudson | Cardiff CityCAR | → |  Huddersfield TownHUD | Nominal |
| 01 Sept 14 | B. Ecuélé Manga Bruno Ecuélé Manga |  LorientLOR | → | Cardiff CityCAR | Undisclosed |
| 01 Sept 14 | D. Gabbidon Daniel Gabbidon | XXX | → | Cardiff CityCAR | Free |
| 01 Sept 14 | B. Ecuélé Manga Bruno Ecuélé Manga | LorientLOR | → | Cardiff CityCAR | Undisclosed |
| 18 Aug 14 | K. Théophile-Catherine Kévin Théophile-Catherine | Cardiff CityCAR | → |  Saint-EtienneASSE | Loan |
| 18 Aug 14 | K. Théophile-Catherine Kévin Théophile-Catherine | Cardiff CityCAR | → | Saint-EtienneASSE | Loan |
| 15 Aug 14 | S. Morrison Sean Morrison |  ReadingREA | → | Cardiff CityCAR | Undisclosed |
| 15 Aug 14 | A. Pilkington Anthony Pilkington |  Norwich CityNOR | → | Cardiff CityCAR | 1,000,000 |
| 11 Aug 14 | J. Mason Joe Mason | Cardiff CityCAR | → |  Bolton WanderersBOL | Loan |
| 09 Aug 14 | G. Medel Gary Medel | Cardiff CityCAR | → |  InternazionaleINT | 10,000,000 |
| 09 Aug 14 | G. Medel Gary Medel | Cardiff CityCAR | → | InternazionaleINT | 10,000,000 |
| 07 Aug 14 | T. Adeyemi Tom Adeyemi |  Birmingham CityBIR | → | Cardiff CityCAR | Undisclosed |
| 05 Aug 14 | J. Mutch Jordon Mutch | Cardiff CityCAR | → |  Queens Park RangersQPR | Undisclosed |
| 05 Aug 14 | J. Lewis Joe Lewis | Cardiff CityCAR | → |  BlackpoolBLP | Loan |
| 05 Aug 14 | J. Mutch Jordon Mutch | Cardiff CityCAR | → | Queens Park RangersQPR | Undisclosed |
| 28 Jul 14 | J. Berget Jo Inge Berget | Cardiff CityCAR | → |  CelticCEL | Loan |
| 28 Jul 14 | J. Berget Jo Inge Berget | Cardiff CityCAR | → | CelticCEL | Loan |
| 25 Jul 14 | F. Campbell Fraizer Campbell | Cardiff CityCAR | → |  Crystal PalaceCRY | Undisclosed |
| 25 Jul 14 | F. Campbell Fraizer Campbell | Cardiff CityCAR | → | Crystal PalaceCRY | Undisclosed |
| 22 Jul 14 | S. Caulker Steven Caulker | Cardiff CityCAR | → | Queens Park RangersQPR | Undisclosed |
| 22 Jul 14 | S. Caulker Steven Caulker | Cardiff CityCAR | → | Queens Park RangersQPR | Undisclosed |
| 16 Jul 14 | K. McNaughton Kevin McNaughton | Cardiff CityCAR | → | Bolton WanderersBOL | Loan |
| 11 Jul 14 | B. Nugent Ben Nugent | Cardiff CityCAR | → |  Yeovil TownYEO | Loan |
| 10 Jul 14 | D. Cowie Don Cowie | Cardiff CityCAR | → |  Wigan AthleticWGA | Free |
| 01 Jul 14 | J. Guerra Javi Guerra |  Real ValladolidVLL | → | Cardiff CityCAR | Free |
| 01 Jul 14 | G. Burgstaller Guido Burgstaller |  Austria ViennaVIE | → | Cardiff CityCAR | Undisclosed |
| 01 Jul 14 | K. Dikgacoi Kagisho Dikgacoi | Crystal PalaceCRY | → | Cardiff CityCAR | Free |
| 01 Jul 14 | F. Macheda Federico Macheda |  Manchester UnitedMAN | → | Cardiff CityCAR | Free |
| 01 Jul 14 | J. Guerra Javi Guerra | Real ValladolidVLL | → | Cardiff CityCAR | Free |
| 03 Jun 14 | A. Taylor Andrew Taylor | Cardiff CityCAR | → | Wigan AthleticWGA | Undisclosed |
| 03 Jun 14 | A. Taylor Andrew Taylor | Cardiff CityCAR | → | Wigan AthleticWGA | Undisclosed |
| 28 May 14 | A. Le Fondre Adam Le Fondre | ReadingREA | → | Cardiff CityCAR | Undisclosed |
| 28 May 14 | A. Le Fondre Adam Le Fondre | ReadingREA | → | Cardiff CityCAR | Undisclosed |
| 20 Feb 14 | J. Mason Joe Mason | Cardiff CityCAR | → | Bolton WanderersBOL | Loan |
| 20 Feb 14 | J. Mason Joe Mason | Cardiff CityCAR | → | Bolton WanderersBOL | Loan |
| 13 Feb 14 | B. Nugent Ben Nugent | Cardiff CityCAR | → |  Peterborough UnitedPET | Loan |
| 08 Feb 14 | D. Oshilaja Deji Oshilaja | Cardiff CityCAR | → |  Sheffield WednesdaySHW | Loan |
| 08 Feb 14 | D. Oshilaja Deji Oshilaja | Cardiff CityCAR | → | Sheffield WednesdaySHW | Loan |
| 07 Feb 14 | Cala | XXX | → | Cardiff CityCAR | Free |
| 31 Jan 14 | C. Conway Craig Conway | Cardiff CityCAR | → |  Blackburn RoversBLK | Undisclosed |
| 31 Jan 14 | W. Zaha Wilfried Zaha | Manchester UnitedMAN | → | Cardiff CityCAR | Loan |
| 31 Jan 14 | A. Cornelius Andreas Cornelius | Cardiff CityCAR | → |  FC CopenhagenCOP | Undisclosed |
| 31 Jan 14 | C. Conway Craig Conway | Cardiff CityCAR | → | Blackburn RoversBLK | Undisclosed |
| 31 Jan 14 | Fabio | Manchester UnitedMAN | → | Cardiff CityCAR | Undisclosed |
| 30 Jan 14 | S. Moore Simon Moore | Cardiff CityCAR | → |  Bristol CityBRC | Loan |
| 28 Jan 14 | P. Odemwingie Peter Odemwingie | Cardiff CityCAR | → |  Stoke CitySTK | Swap |
| 28 Jan 14 | K. Jones Kenwyne Jones | Stoke CitySTK | → | Cardiff CityCAR | Swap |
| 24 Jan 14 | J. Berget Jo Inge Berget |  MoldeMOL | → | Cardiff CityCAR | Undisclosed |
| 24 Jan 14 | J. Brayford John Brayford | Cardiff CityCAR | → |  Sheffield UnitedSHU | Loan |
| 16 Jan 14 | N. Maynard Nicky Maynard | Cardiff CityCAR | → | Wigan AthleticWGA | Loan |
| 16 Jan 14 | N. Maynard Nicky Maynard | Cardiff CityCAR | → | Wigan AthleticWGA | Loan |
| 11 Jan 14 | J. Ralls Joe Ralls | Cardiff CityCAR | → | Yeovil TownYEO | Loan |
| 11 Jan 14 | M. Daehli Mats Daehli | MoldeMOL | → | Cardiff CityCAR | Undisclosed |
| 11 Jan 14 | J. Ralls Joe Ralls | Cardiff CityCAR | → | Yeovil TownYEO | Loan |
| 08 Jan 14 | M. Eikrem Magnus Wolff Eikrem |  HeerenveenHEE | → | Cardiff CityCAR | Undisclosed |
| 08 Jan 14 | M. Eikrem Magnus Wolff Eikrem | HeerenveenHEE | → | Cardiff CityCAR | Undisclosed |
| 08 Jan 14 | F. Kiss Filip Kiss | Cardiff CityCAR | → |  Ross CountyROSS | Loan |
| 08 Jan 14 | F. Kiss Filip Kiss | Cardiff CityCAR | → | Ross CountyROSS | Loan |
| 02 Jan 14 | R. Gestede Rudy Gestede | Cardiff CityCAR | → | Blackburn RoversBLK | Undisclosed |
| 02 Jan 14 | R. Gestede Rudy Gestede | Cardiff CityCAR | → | Blackburn RoversBLK | Undisclosed |
| 01 Jan 14 | D. Richards Dave Richards | Cardiff CityCAR | → | Bristol CityBRC | Undisclosed |