Gvozd is a municipality in central Croatia, Sisak-Moslavina County. Its seat is located in Vrginmost, which was renamed to Gvozd from 1996–20…Gvozd is a municipality in central Croatia, Sisak-Moslavina County. Its seat is located in Vrginmost, which was renamed to Gvozd from 1996–2012. It is an underdeveloped municipality which is statistically classified as the First Category Area of Special State Concern by the Government of Croatia.