Ivan Kozarac was a Croatian novelist, poet and writer of short stories.
He was an active writer for only four years. In his lifetime only a single book was published; a compilation of short stories, "Slavonian Blood" in 1906, and his other books were released only after his death (thanks in part to the efforts of Dragutin Tadijanović).

His cardinal work is the novel "Đuka Begović", first published in 1911. The novel describes many Slavonian traditions in an almost documentary style. It has since been made into a theatrical play and a movie by Branko Schmidt.

Kozarac failed to attract a particular attention to himself in his lifetime. He was a narrator of the life of typical villages of Šokadija during a time when the Military Frontier was freshly reintegrated into Slavonia. He wrote much about the corruption of women and fashion and took a critical stance towards the Church, the wealthy life of some priests, and the false love towards God. His love for his native Slavonia emerges from each of his works.