| Season: | 2022–23 |
| Nextseason: | 2023–24 |
The 2022–23 3. Liga (Slovakia) was the 30th edition of the third tier 3. Liga (Slovakia) since its establishment in 1993. 32 teams contested being divided into two geographic groups of 16 teams each: 3. liga Západ (West) and 3. liga Východ (East).
The following teams have changed division since the 2020–21 season:
Relegated from 2. liga
Promoted from 4. liga
Promoted to 2. liga
Relegated to 4. liga
Relegated to 5. liga