Otto IV, Count of Ravensberg (c. 1276 – 1328) was a German nobleman.
He was the ruling Count of Ravensberg from 1306 until his death.
Otto was the fifth child of Count Otto III and his wife Hedwig of Lippe (c. 1238 – 5 March 1315), daughter of Bernard III, Lord of Lippe.
In 1313, Otto IV married Margaret of Berg-Windeck.
This article about a member of the German nobility is a stub.