| Slovenia Open | |
|---|---|
 | |
| Tournament information | |
| Founded | 2005 |
| Abolished | 2022 |
| Editions | 7 |
| Location | Portorož Slovenia |
| Category | Tier IV (2005–2008) WTA International (2009–2010) WTA 250 (2021–present) |
| Surface | Hard / outdoor |
| Draw | 32M / 24Q / 16D |
| Prize money | $235,238 |
| Website | Slovenia Open |
| Current champions (2022) | |
| Women's singles |  Kateřina Siniaková |
| Women's doubles |  Marta Kostyuk Tereza Martincová |
The Slovenia Open was a women's tennis tournament held in Portorož, Slovenia, originally from 2005 until 2010, and returned to the tour in 2021 and 2022. The WTA Tour event was a WTA International category, and then transitioned to its most recent variant, the WTA 250 category. It was played on outdoor hardcourts.
Katarina Srebotnik finished runner-up in the singles finals of 2005 and 2007, and in the doubles final in 2005.