Jovan Ružić (Serbian Cyrillic: Јован Ружић; 12 December 1898 – 25 September 1973) was a Serbian-Yugoslav footballer.
When the World War I started most sporting activities were suspended and, in order to escape the harsh time Serbia was going through during the war, Ružić decided to move abroad and joined the Serbian army's retreat through Albania.
In 1916 he became the first Serbian footballer to debut in the French league and, because of his strong shot, he was called by the media as "Boulet de canon" (cannon bullet).
[1] In 1919 he returned to Belgrade, now capital of the Kingdom of Serbs, Croats and Slovenes (which will be renamed in 1929 to Yugoslavia), and rejoined his former club, now known as SK Jugoslavija.
[1] He contributed to the popularization of football in Serbia and Yugoslavia, and he also practiced athletics, hazen and handball.