Johann Hartung (1836 Vienna – 1918 Graz) was an Austrian animal painter. He was a son of painter Heinrich Reichert and brother of Prague theater painter Heinrich Reichert. He studied at the Drawing Academy in Graz with J. Tunner and E.C. Moser, later with J. Kuwasseg. From 1866 till 1876, he lived in Munich and Rome where he worked with Anton Romako and Johann Passini. From 1869 to 1910 he lived in Vienna, where he created the dogs and cats for which he became best known. Since 1874, he was a member of the Vienna Artist Union “Künstlerhaus”.