Hans Rev

Hans Rev (or Hans Reff, about 1489 in Denmark – July/August 1545 in Oslo) was a Norwegian clergyman. He was the last Bishop of the Roman Catholic Diocese of Oslo before the Protestant Reformation, and later became the first Lutheran Superintendent of the Diocese of Oslo within the Church of Norway.

About Rev's background, little is known except that he was of Danish origin. He studied in Paris, where he earned his Master's Degree in both Roman and Canon Law. He worked for some years as secretary for Erik Valkendorf, who was elected Archbishop of Nidaros in 1510. In 1525, Rev has been appointed Bishop of Oslo with the support of Archbishop Olav Engelbrektsson and King Frederick I of Denmark.

In August 1536, along with the other Roman Catholic bishops of Denmark and Norway, he was declared deposed by King Christian III of Denmark. In November 1537, Rev renounced his episcopal dignity in a letter to the King and promised his continued loyalty and allegiance. In the fall of 1541, he was appointed Bishop (titled Superintendent) of the Diocese of Oslo, which was simultaneously incorporated with the Diocese of Hamar. He thus became the country's first Lutheran bishop. He was also the only former Roman Catholic bishop to lead a Diocese within the Church of Norway.