Jens Lauritz Arup Seip (11 October 1905 – 5 September 1992) was a Norwegian historian originally trained as a medieval historian, but stood out as the strongest of his time in interpreting Norwegian political history in the 1800s, particularly known for having created the term "embedsmannsstaten". He was a professor at the University of Oslo from 1952 to 1975, he specialized in political history and the history of ideas. He was married to fellow historian Anne-Lise Seip.