The 2008–09 Druga HNL (also known as 2. HNL) season was the 18th season of Croatia's second level football since its establishment in 1992. Croatia Sesvete were league champions and were promoted to Prva HNL at the end of the previous season. The league featured 16 clubs, playing in a double round robin league system. The season started on 23 August 2008 and ended on 30 May 2009.

Changes from last season

The following clubs have been promoted or relegated at the end of the 2007–08 season:

From 2. HNL

Promoted to 1. HNL Relegated to 3. HNL

To 2. HNL

Relegated from 1. HNL Promoted from 3. HNL

Clubs

League table

Results

Top goalscorers

The top scorers in the 2008–09 Druga HNL season were: