| Rijeka Open | |
|---|---|
| Defunct tennis tournament | |
| Event name | Rijeka | 
| Founded | 2007 | 
| Abolished | 2011 | 
| Location | Rijeka, Croatia | 
| Category | ATP Challenger Tour | 
| Surface | Clay (red) | 
| Draw | 32S/32Q/16D | 
| Prize money | €30,000+H | 
| Website | www | 
 
 The Rijeka Open was a professional tennis tournament played on outdoor red clay courts. It was part of the Association of Tennis Professionals (ATP) Challenger Tour from 2007 to 2011 and was held in Rijeka, Croatia.
| Year | Tier | Champion | Runner-up | Score | 
|---|---|---|---|---|
| 2011 | $35K+H [1] or $30K [2] or EUR30K [3] |  Rui Machado |  Grega Žemlja | 6–3, 6–0 | 
| 2010 | $35K+H [4] or $30K [5] |  Blaž Kavčič |  Rubén Ramírez Hidalgo | 6–4, 3–6, 7–6(5) | 
| 2009 | $35K+H [6] or $42K [7] or EUR30K [8] |  Paolo Lorenzi |  Blaž Kavčič | 6–3, 7–6(2) | 
| 2008 | $35K+H [9] |  Nicolás Massú |  Christophe Rochus | 6–2, 6–2 | 
| 2007 | $35K+H [10] |  Marin Čilić |  Lukáš Lacko | 7–5, 6–2 | 
| Year | Tier | Champions | Runners-up | Score | 
|---|---|---|---|---|
| 2011 |  Paolo Lorenzi  Júlio Silva |  Lovro Zovko  Dino Marcan | 6–3, 6–2 | |
| 2010 |  Adil Shamasdin  Lovro Zovko |  Carlos Berlocq  Rubén Ramírez Hidalgo | 1–6, 7–6(9), [10–5] | |
| 2009 |  Sebastián Decoud  Miguel Ángel López Jaén |  Ivan Dodig  Antonio Veić | 7–6(7), 3–6, [10–8] | |
| 2008 |  Dušan Karol  Jaroslav Pospíšil |  Alex Kuznetsov  Dick Norman | 6–4, 6–4 | |
| 2007 |  Jérôme Haehnel  Jean-René Lisnard |  Ivo Klec  Lukáš Lacko | 6–3, 6–4 |