The 3. Liga is the third-tier football league in Slovakia, established in 1993. As of the 2024–25 season, it comprises 33 teams divided into two geographical groups: 3. liga Západ (West) and 3. liga Východ (East). The league operates under the jurisdiction of the Slovak Football Association and serves as a feeder league to the 2. Liga, with top-performing teams earning promotion. Conversely, teams finishing at the bottom face relegation to the 4. Liga. The league also provides teams the opportunity to compete in the national Slovak Cup.
| Period | Sponsor | Name |
| 1993–2006 | No main sponsor | 3. liga |
| 2006–2011 | No main sponsor | 2. liga |
| 2011–2012 | No main sponsor | 3. liga[1] |
| 2012–2013 | Tipos | Keno 10 3. liga |
| 2013–? | Tipos | TIPOS III.liga |
| ?-present | No main sponsor | 3. liga[2] |
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