Leif Petter Ottersen (5 December 1928 – 28 October 2017) was a Norwegian priest.
He was hired as a curate in Vestre Aker in 1972, and from 1977 he was a vicar as well as dean of the deanery of the same name. From 1988 to 1996 he was the dean of the Diocese of Oslo,[1] which encompasses Asker, Bærum and the country's capital, Oslo.