Christian Cornelius Jensen (20 July 1883 in Archsum auf Sylt – 18 September 1940 in Berlin) was a German classical philologist and papyrologist.
His father, Christian Jensen (1857–1936), was a local historian and teacher.
He studied classical philology at the universities of Marburg and Kiel, where he was influenced by the work of Siegfried Sudhaus.
He worked as a gymnasium teacher in Kiel and Wandsbek, and in 1910 obtained his habilitation for classical philology at the University of Marburg.In 1912 he became an associate professor at the University of Königsberg, and during the following year, attained a full professorship at the University of Jena.
In 1917 he returned as a professor to Königsberg, and later on in his career, worked as a philology professor at the universities of Kiel (from 1921), Bonn (from 1926) and Berlin (from 1937).