This is a list of Croatian football transfers for the 2009 summer transfer window. Only moves featuring at least one Prva HNL club are listed.
| Date | Name | Moving from | Moving to | Fee | Source | |
|---|---|---|---|---|---|---|
| 21 May 2009 | €900,000 | |||||
| 01 Jun 2009 | €2,000,000 | Sportnet.hr | ||||
| 07 Jun 2009 | Free transfer | Sportnet.hr | ||||
| 09 Jun 2009 | Undisclosed | Sportnet.hr | ||||
| 09 Jun 2009 |  | Free transfer | Sportnet.hr | |||
| 09 Jun 2009 | Undisclosed | Sportnet.hr | ||||
| 13 Jun 2009 |  | Undisclosed | Sportnet.hr | |||
| 15 Jun 2009 | Undisclosed | Sportnet.hr | ||||
| 15 Jun 2009 | Undisclosed | Sportnet.hr | ||||
| 17 Jun 2009 | | €500,000 | Sportnet.hr | |||
| 17 Jun 2009 | Undisclosed | Sportnet.hr | ||||
| 17 Jun 2009 | Undisclosed | Sportnet.hr | ||||
| 17 Jun 2009 | Undisclosed | Sportnet.hr | ||||
| 18 Jun 2009 | Undisclosed | Sportnet.hr | ||||
| 18 Jun 2009 | | Undisclosed | Sportnet.hr | |||
| 19 Jun 2009 | Undisclosed | Sportnet.hr | ||||
| 19 Jun 2009 |  | Undisclosed | Sportnet.hr | |||
| 26 Jun 2009 | Undisclosed | Sportnet.hr | ||||
| 26 Jun 2009 | | €300,000 | Sportnet.hr | |||
| 28 Jun 2009 | Undisclosed | Sportnet.hr | ||||
| 29 Jun 2009 | Free transfer | Sportnet.hr | ||||
| 29 Jun 2009 | Undisclosed | |||||
| 04 Jul 2009 | Undisclosed | Sportnet.hr | ||||
| 09 Jul 2009 | €200,000 | |||||
| 17 Jul 2009 | | Free Transfer | ||||
| 21 Jul 2009 | Free Transfer | sportnet.hr | ||||
| 21 Jul 2009 | Free Transfer | sportnet.hr | ||||
| 03 Aug 2009 | €7,000,000 | sportnet.hr | ||||
| 03 Aug 2009 | Free transfer | |||||
| 13 Aug 2009 | ||||||
| 13 Aug 2009 | ||||||
| 19 Aug 2009 |  | Free Transfer |