Petko Voivoda better known as Captain Petko Voyvoda was a 19th-century Bulgarian hajduk leader and freedom fighter who dedicated his life to the liberation of Bulgaria.
In the beginning of 1861 Petko began fighting against the Ottomans in the surrounding areas of Maroneia, Aisymi, Enos etc. He visited Italy in 1866, where he met Giuseppe Garibaldi, who became a close friend. Petko lived in Garibaldi's home for a few months. Garibaldi helped Petko organize the well-known "Garibaldi Battalion" in the Cretan Revolution of 1866–1869, consisting of 220 Italians and 67 Bulgarians, who fought the Ottomans on Crete under Petko's command. For his service, Petko was assigned the military title of Kapetan (Captain).