ABA League Second Division
| ABA2 League Vertical logo | |
| Founded | July 2017 | 
|---|---|
| First season | 2017–18 | 
| Country | |
| Confederation | FIBA Europe | 
| Number of teams | 16 | 
| Level on pyramid | 2nd | 
| Promotion to | ABA League First Division | 
| Supercup | ABA Supercup | 
| International cup(s) | Champions League | 
| Current champions | Bosna Visit Sarajevo (1st title) (2024–25) | 
| Most championships | Krka (2 titles) | 
| TV partners | Arena Sport | 
| Website | druga.aba-liga.com | 
| 2024–25 season | |
The ABA League Second Division, also ABA League 2, is the 2nd-tier men's basketball division of the ABA League system. It is run by the ABA League JTD. It is a regional competition between men's professional clubs from six countries: Bosnia and Herzegovina, Croatia, Montenegro, North Macedonia, Serbia, and Slovenia.