Rane Jonsen (died 1294) was a Danish esquire and camerarius, known for his role in the murder of Eric V of Denmark.
He is mentioned in a traditional Medieval ballad as the traitor "warding his master with deceit".
Jonsen was born to Jon Ranesen og Elisabeth (daughter of Niels Falster).
He was squire at the time of the murder of king Eric V and seems also briefly to have served as his Jonsencamerarius.
[1] He participated in attacks on Denmark by Stig Andersen Hvide and other outlaws, circa 1289.