2002–03 Croatian Second Football League

Druga HNL
Season2002–03
ChampionsMarsonia (North Division)
Inker Zaprešić (South Division)
PromotedMarsonia
Inker Zaprešić
RelegatedPodravac
Istra Pula
TŠK Topolovac

The 2002–03 Druga HNL (also known as 2. HNL) season was the 12th season of Croatia's second level football since its establishment in 1992. The league was contested in two regional groups (North Division and South Division), with 12 clubs each.