Sava IV (Serbian Cyrillic: Сава IV) was the Serbian Patriarch, the primate of the Serbian Orthodox Church in the period of 1354–1375. He became the second patriarch during the reign of Serbian emperor Stefan Dušan (r. 1331–55), succeeding Patriarch Joanikije II (s. 1346–1354, Serbian Archbishop since 1338). He continued his office into the reign of Stefan Uroš V (r. 1355–71).