2003–04 Slovenian Second League
| Season | 2003–04 |
|---|---|
| Champions | Rudar Velenje |
| Promoted | Bela Krajina Zagorje |
| Relegated | |
| Goals scored | 562 |
| Top goalscorer | Ismet Ekmečić (30 goals) |
← 2002–03 2004–05 → | |
The 2003–04 Slovenian Second League season started on 10 August 2003 and ended on 6 June 2004. Each team played a total of 32 matches.