Count István Bittó de Sárosfa et Nádasd (May 3, 1822 in Sárosfa, Kingdom of Hungary (today Blatná na Ostrove, Slovakia) – March 7, 1903 in Budapest) was a Hungarian politician who served as Speaker of the House of Representatives of Hungary from 10 September 1872 to 23 March 1874 and as Prime Minister of Hungary from 1874 to 1875.