Jens Jonas Elstrand Jansen (8 March 1844 – 1 August 1912) was a Norwegian priest, teacher and columnist.
He was born in Hobøl as a son of priest David Middelthon Jansen and his wife Eleonore Cathrine Elstrand.
[2] He became a student at Nissens Latin- og Realskole, finished his secondary education in 1861 and graduated with the cand.theol.
He first worked as a teacher, at the same time editing the magazines Børnenes Blad and Hjemmet, but was hired as a curate in Skjeberg in 1873.
Johnson disciple and bishop Johan Christian Heuch in 1902 declared Jansen as a "dangerous" man, citing that his liberal tendencies could open Christendom for "Muhammedans and pagans".