Eberhart Jensen (22 July 1922 – 16 January 2003) was a Norwegian astrophysicist. He was born in Røyken as a son of farmer Edvard Jensen (1850–1930) and Berthe Marie Kristiansen (1883–1961). He finished his secondary education in 1942 and graduated from the University of Oslo with the cand.real. degree in 1949. During the occupation of Norway, after the 1943 University of Oslo fire, he was arrested together with a thousand students and sent to Stavern. In December he was shipped on to Sennheim, later Buchenwald. He survived until the camp was liberated. In 1948 he married Liv Linnestad.