Otto Wilhelm von Fersen was a Swedish general and nobleman of the Fersen family, governor-general of Ingria and Kexholm from 1691 to 1698, field marshal 1693. He was the son of Hermann von Fersen the Elder and cousin to Fabian von Fersen.
- Occupation
- estate owner, military officer, Generalfeldmarschall
- Citizenship
- Sweden
- Born
- July 25, 1623
- Died
- April 23, 1703
