2008–09 Croatian Second Football League

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
 * Croatia Sesvete (winners of 2007–08 Druga HNL)

Relegated to 3. HNL
 * Marsonia (13th place)
 * Kamen Ingrad (14th place)
 * Vukovar '91 (15th place)
 * Belišće (16th place)

To 2. HNL
Relegated from 1. HNL
 * Međimurje (12th place)

Promoted from 3. HNL
 * Suhopolje (3. HNL East winners)
 * Junak Sinj (3. HNL South third place)1
 * Karlovac (3. HNL West winners)
 * Lokomotiva (3. HNL West runners-up)2

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