The 2012–13 2. národní hokejová liga season was the 20th season of the 2nd Czech Republic Hockey League, the third level of ice hockey in the Czech Republic.
30 teams participated in the league, and VSK Technika Brno, AZ Havířov, and HC Tábor qualified for the qualification round of the 1st Czech Republic Hockey League.
VSK Technika Brno proceeded directly to the qualification round of the 1st Czech Republic Hockey League after winning their final series.
AZ Havířov proceeded directly to the qualification round of the 1st Czech Republic Hockey League after winning their final series.
HC Tábor proceeded directly to the qualification round of the 1st Czech Republic Hockey League after winning their final series.