Diether of Nassau

Diether III
Archbishop and Elector of Trier
ChurchCatholic Church
DioceseArchdiocese of Trier
In office1300–1307
PredecessorBohemond I of Warnesberg
SuccessorBaldwin of Luxembourg
Personal details
Bornc. 1250
Died23 November 1307
Trier

Diether of Nassau, German: Diether von Nassau (c. 1250 – Trier, 23 November 1307) was a clergyman from the Walramian branch of the House of Nassau. From 1300 to 1307 he was Archbishop and Elector of Trier as Diether III.