Peder Hersleb (25 March 1689 – 4 April 1757) was a Norwegian clergyman and bishop.

He became a student at Trondheim in 1703 and received a bachelor's degree in 1704, taking his theological examination in 1707.

In 1718 he was called to minister at Gunslev on the island of Falster, but the same year he was appointed priest at Frederiksborg Castle and vicar in Hillerod and Roskilde.

In 1727, he was a member of the Mission College and co-director of Waisenhuset Orphanage School which he inaugurated in spring 1728.

His daughter, Frederikke Louise Hersleb (1720-1780), married Ludvig Harboe, who worked with him in the diocese.