John Kenneth (Johnny) Miljus (Serbian Cyrillic Џон Кенет Миљуш or Serbian Latin Džon Kenet Miljuš) (June 30, 1895 – February 11, 1976) nicknamed "Big Serb" and "Jovo", was a Serbian-American baseball player who pitched in Major League Baseball between 1915 and 1929. Miljus was most likely the first American Serb to play in professional baseball.