Jens Lauritz Opstad (5 May 1917 – 23 May 2003) was a Norwegian museum director and historian.
He was born in Tune as a son of wholesaler Jens Lauritzen Opstad (1884–1963) and Laura Kristine Thune (1885–1921).
He finished his secondary education in Sarpsborg in 1937 and at the University of Oslo he took the cand.mag.
[1] He was a school teacher in Fredrikstad from 1944 to 1945, then a consultant for half a year at the Norwegian Museum of Decorative Arts and Design.
Important books include Moss Jernverk (1950), Herrebøe Fajance Fabrique (1959), Bygdehistorien inntil 1800 (volume two of Rygge, 1957) and Norsk pottemakeri 1600–1900 (1990).