Krnjak (Serbian Cyrillic: Крњак)[4] is a village and a municipality in Karlovac County, Croatia.

On the territory of Krnjak municipality, along with Croatian which is official in the whole country, as a second official language has been introduced Serbian language and Serbian Cyrillic alphabet.

[5] There are a total of 1,985 inhabitants in the municipality (census 2011), 68.6% which are Serbs and 29.2% which are Croats.

[7] The municipality is part of Kordun.

The settlements in the municipality are:[8] Hrvatsko Žarište, once called Partizansko Žarište, was famous for its elementary school, that was founded by family Vidić.