| Founded | 2015 |
|---|---|
| First season | 2015 |
| Country |  Iceland |
| Confederation | FIBA Europe |
| Number of teams | 7 |
| Level on pyramid | 4 |
| Promotion to | 2. deild karla |
| Domestic cup(s) | Icelandic Basketball Cup |
| Supercup | Icelandic Super Cup |
| Current champions | Breiðablik-b |
| Most championships | Breiðablik-b, Álftanes, Gnúpverjar, Sindri (1 title) |
| CEO | Hannes S. Jónsson |
| Website | www |
3. deild karla (English: Men's 3. Division) or D3 is the fourth tier basketball competition among clubs in Iceland. It is organized by the Icelandic Basketball Federation (Icelandic: Körfuknattleikssamband Íslands – KKÍ). It consists of 8 teams and the season consists of a schedule of 14 games. The top four teams meet in a playoff for the victory in the 3. deild. The two finalists achieve promotion to 2. deild karla.[1]