Rudolf I (died 3 August 908) was the Bishop of Würzburg from 892 until his death.
In 892, he was appointed as bishop to replace Arno, who was killed during a campaign against Great Moravia.
At the same time, his brother Conrad the Elder became Margrave of Thuringia, reflecting the influence the family held within East Francia.
It is probable that Arnulf switched his patronage from one family to another, because Poppo, Duke of Thuringia, a Babenberg, was deposed for counselling Arno to campaign.
This article about a German Catholic bishop or archbishop is a stub.