| Competition: | 1. A liga |
| Season: | 2016–17 |
| Winners: | Celje (21st title) |
| Relegated: | Slovenj Gradec 2011 Dol Hrastnik Drava Ptuj Izola |
| Continentalcup1: | Champions League |
| Continentalcup2: | EHF Cup |
| Prevseason: | 2015–16 |
| Nextseason: | 2017–18 |
The 2016–17 Slovenian First League (known as the Liga NLB for sponsorship reasons) was the 26th season of the 1. A liga, Slovenia's premier handball league.
The following 14 clubs competed in the 1. A liga during the 2016–17 season:
| Team | width=100 | City | width=150 | Arena | width=130 | Notes |
|---|---|---|---|---|---|---|
| RK Celje Pivovarna Laško | Celje | Zlatorog Arena | Teams entering in Championship Round | |||
| RK Gorenje Velenje | Velenje | Red Hall | ||||
| RD Riko Ribnica | Ribnica | Ribnica Sports Center | ||||
| RD Koper 2013 | Koper | Arena Bonifika | ||||
| RK Maribor Branik | Maribor | Tabor Hall | ||||
| RD Urbanscape Loka | Loka | Poden Sports Hall | ||||
| MRK Krka | Novo Mesto | Marof Hall | ||||
| RK Jeruzalem Ormož | Ormož | Hardek Hall | ||||
| RK Trimo Trebnje | Trebnje | OŠ Trebnje Hall | ||||
| MRD Dobova | Dobova | Dobova Sports Hall | ||||
| RD Istrabenz Plini Izola | Izola | Izola Sports Hall | ||||
| RK Slovenj Gradec 2011 | Slovenj Gradec | Vinka Cajnka Hall | ||||
| RK Dol TKI Hrastnik | Dol pri Hrastniku | Dolanka Sports Hall | ||||
| RK Drava Ptuj | Ptuj | OŠ Ljudski vrt Ptuj | ||||