Gerhard II, Count of Holstein-Plön

Gerhard II, called the Blind (1254 – 28 October 1312), was count of Holstein-Plön from 1290. The second son of Gerhard I of Holstein-Itzehoe, he received Plön when his father's county was divided among the brothers in 1290.

In 1275 he married Ingeborg, daughter of the king of Sweden; their son Gerhard IV succeeded at Plön. In 1293 he married Agnes of Brandenburg, widow of King Eric V of Denmark, by whom he had John III, who ruled Holstein-Kiel from 1312.