Gerhard IV (c. 1277 – 1323), was Count of Holstein-Plön from 1312 until his death.

He was the eldest son of Gerhard II and his wife, Ingeborg of Sweden.

He married on 30 July 1313 to Anastasia of Schwerin (c. 1291 – after 1316), a daughter of Nicholas I of Schwerin, and had the following children with her: An early seal from his time as Provost of Lübeck reads:

"Seal of Gerhard, provost of Lübeck by the grace of God"

This article about a member of the German nobility is a stub.