Ilija Trifunović-Birčanin was a Serbian Chetnik military commander. He took part in the Balkan Wars and World War I and afterwards served as the president of the Association of Serb Chetniks for Freedom and the Fatherland in the Kingdom of Yugoslavia. In the spring of 1942, he was appointed by Mihailović as the commander of Chetniks in Dalmatia, Herzegovina, western Bosnia and southwestern Croatia. He died in Split on 3 February 1943, having suffered from poor health for a considerable period of time.