Guthorm Kavli (15 May 1917 – 1 June 1995) was a Norwegian architect and writer.
He was born in Trondheim, and took the dr.techn. degree at the Norwegian Institute of Technology in 1967. His doctoral thesis was Trønderske trepaleer, and important books include Norwegian Architecture, Past and Present (1958), Norges festninger: fra Fredriksten til Vardøhus (1987) and 25 år på kongens slott (1992). The latter book was written in light of his position from 1962 to 1987 as administrator at the Royal Palace, Oslo.
During World War II, Kavli was one of the members of the Monuments Men (M.F.A.A.), who sought to protect European art treasures during and after the war.