Ernst Haenchen (10 December 1894 – 30 April 1975) was a German Protestant theologian, professor, and Biblical scholar.

[1][2] Ernst Haenchen grew up as the youngest son of a government official along with his two siblings in the West Prussian county town Czarnikau.

[3] In 1914 he began studying theology at the Humboldt University of Berlin, which he had to interrupt in the same year after the outbreak of the First World War.

After the closure of the University of Münster in 1944, Ernst Haenchen resided in Davos, Switzerland, until 1948, in order to cure his tuberculosis disease again.

Shortly before his death, he finished the text of his second, posthumously published masterpiece, a commentary on the Gospel according to John.