Hans Erich Freiherr von Campenhausen (16 December 1903 – 6 January 1989) was a German Baltic Protestant theologian.
Despite his signature to the Law for the Reconstruction of the Professional Civil Service von Campenhausen stood distantly opposed to National Socialism,[1] and later joined the Confessing Church.
In 1945 he was appointed professor of church history in Heidelberg as the successor of his teacher, Hans von Schubert, and in 1946 was elected Rector.
In Heidelberg, his most important works were Kirchliches Amt und geistliche Vollmacht in den ersten drei Jahrhunderten (1953) and Die Entstehung der christlichen Bibel (1968).
A severe visual impairment made it increasingly difficult, and eventually impossible, for him to do scientific work in his last years of life.