Adolph II of Nassau-Wiesbaden-Idstein (German: Adolf II. von Nassau-Wisebaden-Idstein) (c. 1423 - 6 September 1475) was the Archbishop of Mainz from 1461 until 1475.

Adolph was a son of Count Adolph II of Nassau-Wiesbaden-Idstein. In 1459 Adolph was defeated in the election of Archbishop of Mainz by Theodoric of Isenburg-Büdingen. In 1461 Pope Pius II declared Adolph the archbishop of Mainz following the confrontational reforms of Theodoric. The city and cathedral of Mainz was loyal to Theodoric so Adolph declared war. The devastating Mainzer Feud continued for a year before on 28 October 1462 Adolph captured the city of Mainz. He had killed approximately 400 citizens of the city, and another 400 fled abroad. Adolph revoked the privileges and the status of Imperial City of Mainz. Adolph died in Eltville in 1475 and was buried in the Abbey of Eberbach.

Preceded by:

Adolph II of Nassau-Wiesbaden-Idstein

Succeeded by:

Theodoric of Isenburg-Büdingen Archbishop of Mainz
1461- 1475
Theodoric of Isenburg-Büdingen
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