The Fersen family, stylized as the von Fersen (German: Versen), is a Baltic-German noble family grouped into several ennobled branches that settled in and around the kingdoms bordering the Baltic Sea in Northern Europe.

[1] The earliest records of the Fersen family in Livonia area in the late 17th century suggest possible links to earlier participation in the Northern Wars.

The Swedish branch of the Fersen family originally derived from the line in Livonia.

After moving to Sweden, some of its members were awarded Countships for gallant military acts.

This line is best known through its line of distinguished military service[2] and for Axel von Fersen the Younger's possible love affair with Marie Antionette, suggested in court accounts and a recently uncovered series of "torrid" love letters.