Waldemar Hvoslef (17 March 1825 – 5 May 1906) was a Norwegian Lutheran bishop. Fredrik Waldemar Hvoslef was born in Christiania (now Oslo) and grew up in Holmestrand in Vestfold. He was the son of Jens Hvoslef (1783–1830) who served as Magistrate of Nordre Jarlsberg, now Vestfold. He began to study theology during 1850. He was appointed Bishop of Tromsø stift in 1868. In 1881 he was appointed Bishop of the Diocese of Bjørgvin, and served in this position until his retirement in 1898. He was married to Alette Katrine Frost (1826–1902) with whom he had nine children.