2008–09 Cardiff City F.C. season In In

| Name_ | Country | Type_ | Moving_from | Transfer_window | Ends | Transfer_fee | Source_ |
|---|---|---|---|---|---|---|---|
| Comminges | GPE | Free Transfer | Swindon Town | Summer | 2010 | Free | BBC Sport |
| Kennedy | IRL | Free Transfer | Crystal Palace | Summer | 2010 | Free | BBC Sport |
| Enckelman | FIN | Free Transfer | Blackburn Rovers | Summer | 2010 | Free | BBC Sport |
| Dennehy | IRL | Free Transfer | Everton | Summer | 2010 | Free | BBC Sport |
| McCormack | SCO | Transfer | Motherwell | Summer | 2010 | £120,000 | BBC Sport |
| Bothroyd | ENG | Transfer | Wolverhampton Wanderers | Summer | 2011 | £350,000 | BBC Sport |
| Gyepes | HUN | Transfer | Northampton Town | Summer | 2010 | £200,000 | BBC Sport |
| Burke | SCO | Free Transfer | Rangers | Winter | 2011 | Free | BBC Sport |