İsmail Hakkı Karadayı (born 1932 in Çankırı) is a retired Turkish general, who became the 20th Commander of the Turkish Armed Forces on 30 August 1993. He served between 1994 and 1998 as the 22nd Chief of the Turkish General Staff for a four-year term and was succeeded by General Hüseyin Kıvrıkoğlu.