| Founded: | 1994 |
| Teams: | 12 |
| Promotion: | 1. SKL |
| Relegation: | 3. SKL |
| Levels: | 2 |
| 2. SKL | |
| Sport: | Basketball |
| Inaugural: | 1994–95 |
| Continent: | Europe |
| Country: | Slovenia |
| Champion: | Zlatorog Laško (1st title) |
| Champ Season: | 2023–24 |
| Most Champs: | LTH Castings (4 titles) |
| Website: | kzs.si |
The Slovenian Second Basketball League (Slovenian: 2. slovenska košarkarska liga), abbreviated as the 2. SKL, is the second-highest basketball league in Slovenia.
Each team plays 22 matches (11 home and 11 away). Teams play two matches against each other, once at home and once at their opponent's arena.
As of the 2024–25 season
| Season | Champions | |
|---|---|---|
| 1994–95 | Krško | |
| 1995–96 | Sežana | |
| 1996–97 | Škofja Loka | |
| 1997–98 | Triglav Kranj | |
| 1998–99 | Zagorje | |
| 1999–2000 | Šentjur | |
| 2000–01 | Koper | |
| 2001–02 | Jurij Plava Laguna | |
| 2002–03 | Unika Postojna | |
| 2003–04 | Branik Maribor | |
| 2004–05 | Loka Kava | |
| 2005–06 | Triglav Kranj | |
| 2006–07 | Hopsi Polzela | |
| 2007–08 | Misel Postojnska jama | |
| 2008–09 | Parklji Ljubljana | |
| 2009–10 | Maribor Messer | |
| 2010–11 | Rogaška | |
| 2011–12 | Grosuplje | |
| 2012–13 | Splošna plovba Portorož | |
| 2013–14 | Šenčur GGD | |
| 2014–15 | LTH Castings | |
| 2015–16 | Terme Olimia Podčetrtek | |
| 2016–17 | Ilirija | |
| 2017–18 | Terme Olimia Podčetrtek | |
| 2018–19 | Terme Olimia Podčetrtek | |
| 2019–20 | N/A | |
| 2020–21 | Nutrisport Ilirija | |
| 2021–22 | LTH Castings | |
| 2022–23 | ECE Triglav Kranj | |
| 2023–24 | Zlatorog Laško |
| Season | Top scorer | Top rebounder | Top assistant | |||||
|---|---|---|---|---|---|---|---|---|
| 2007–08 | Tadej Tušek | 23.62 | Uroš Ivanovič | 20.78 | Tadej Tušek | 11.54 | Mitja Brečko | 5.75 |
| 2008–09 | Roman Horvat | 20.96 | Roman Horvat | 21.20 | Dušan Dolinar | 9.00 | Luka Gorenec | 3.61 |
| 2009–10 | Boštjan Sivka | 23.17 | Dalibor Petrović | 19.32 | Dušan Dolinar | 10.92 | Marko Marcetič | 4.13 |
| 2010–11 | Štefan Kosec | 20.27 | Dalibor Petrović | 19.78 | Gregor Jakhel Kolarević | 9.95 | 5.92 | |
| 2011–12 | Jure Eržen | 22.74 | Igor Spešić | 20.50 | Igor Spešić | 9.67 | 5.74 | |
| 2012–13 | Miha Markič | 23.37 | Miha Markič | 20.32 | Igor Spešić | 10.08 | 5.27 | |
| 2013–14 | Gregor Jakhel Kolarević | 25.79 | Gregor Jakhel Kolarević | 21.00 | Gregor Jakhel Kolarević | 11.93 | Domen Janc | 5.34 |
| 2014–15 | Anže Cerkovnik | 22.14 | 21.05 | Anže Cerkovnik | 10.00 | Gašper Ovnik | 4.91 | |
| 2015–16 | Anže Cerkovnik | 23.45 | Marko Cej | 18.59 | Anže Cerkovnik | 10.50 | Rene Žvan | 5.52 |
| 2016–17 | 23 | 19.08 | Milan Kovačević | 11.53 | 7.09 | |||
| 2017–18 | Anže Cerkovnik | 20.95 | Gašper Sevšek | 18 | Jaka Stemberger | 11.07 | Tadej Koštomaj | 7.48 |
| 2018–19 |  Tim Cole | 27.82 | 19,27 | Tim Cole | 12.68 | Tadej Koštomaj | 7.43 | |