| Competition: | Slovenian PrvaLiga |
| Season: | 2002–03 |
| Winners: | Maribor (7th title) |
| Relegated: | Rudar Korotan (excluded) |
| Continentalcup1: | Champions League |
| Continentalcup1 Qualifiers: | Maribor |
| Continentalcup2: | UEFA Cup |
| Continentalcup2 Qualifiers: | Celje Olimpija (cup winners) |
| Continentalcup3: | Intertoto Cup |
| Continentalcup3 Qualifiers: | Koper |
| League Topscorer: | Dražen Žeželj (19 goals) |
| Biggest Home Win: | Maribor 5–0 Gorica Primorje 5–0 Ljubljana Maribor 5–0 Dravograd |
| Biggest Away Win: | Ljubljana 1–6 Maribor Korotan 0–5 Celje |
| Highest Scoring: | Šmartno 5–5 Maribor |
| Matches: | 175 |
| Total Goals: | 491 |
| Longest Wins: | 8 games Celje Maribor |
| Longest Unbeaten: | 15 games Celje |
| Longest Winless: | 13 games Rudar |
| Longest Losses: | 6 games Rudar |
| Highest Attendance: | 9,000 Maribor 0–0 Celje |
| Lowest Attendance: | 200 Ljubljana 2–1 Maribor |
| Attendance: | 225,100 |
| Average Attendance: | 1,286 |
| Prevseason: | 2001–02 |
| Nextseason: | 2003–04 |
The 2002–03 Slovenian PrvaLiga season started on 14 July 2002 and ended on 1 June 2003. Each team played a total of 31 matches.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 |  Marko Kmetec | Ljubljana/Olimpija | 22 |
| 2 | Marko Vogrič | Primorje | 17 |
| 3 | Ramiz Smajlović | Šmartno | 15 |
| 4 | Dražen Žeželj | Ljubljana | 14 |
| 5 | Ermin Rakovič | Maribor | 13 |
| Marjan Dominko | Mura | ||
| Matej Rebol | Dravograd | ||
| 8 | Oskar Drobne | Dravograd | 12 |
| Alen Mujanović | Rudar Velenje | ||
| Damir Pekič | Maribor | ||
| Robert Koren | Celje |