Stephen IV may refer to:
Stephen IV, Greek Orthodox Patriarch of Antioch (died 744) Pope Stephen III, aka Stephen IV, (720–772), native of Sicily Pope Stephen IV, Pope from June 816 to January 817 Stephen IV of Hungary (c. 1133 – 1165), King of Hungary and Croatia Stephen IV of Serbia (c. 1285 – 1331), King of Serbia Stephen Ostojić of Bosnia (died 1421), King of Bosnia Stephen IV of Moldavia (r. 1517–1527)