Per Jonas Nordhagen

Per Jonas Nordhagen (30 October 1929 – 24 May 2025) was a Norwegian art historian.

He was born in Bergen as a son of professor Rolf Nordhagen (1894–1979) and Elisabeth Marie Myhre (1900–1979). He was a grandson of Johan Nordhagen and nephew of Olaf Nordhagen. He has been married twice; first to art historian Signe Horn Fuglesang, a daughter of Rolf Jørgen Fuglesang.

He finished his secondary education in 1948 and took the mag.art. degree (PhD equivalent) at the University of Oslo in 1955. He was a lecturer at the University of Oslo from 1962 to 1969, and after taking the dr.philos. degree in 1968 he became a docent at the University of Bergen from 1969 to 1973. He managed the University of Oslo's Norwegian Institute in Rome from 1973, succeeding his mentor Hans Peter L'Orange, before being a docent at the University of Oslo from 1976 to 1986 and a professor at the University of Bergen from 1986 to 1999. He was elected to the Norwegian Academy of Science and Letters in 1974.