Gyula Kellner, Hungarian runner (d. 1940)

Gyula Kellner (born April 11, 1871 in Budapest, Kingdom of Hungary; died July 28, 1940 in Szolnok, Kingdom of Hungary) was a Hungarian athlete. He competed at the 1896 Summer Olympics in Athens.Kellner was one of 17 athletes to start the marathon race (the first modern Olympic marathon). He finished in fourth place, but when the third-place finisher, Spiridon Belokas, was found to have covered a portion of the race by carriage, Kellner was awarded third place. His time was 3:06.35.