Alexander Lange Johnson (26 October 1910 – 20 April 1989) was a Norwegian priest, resistance member during World War II, bishop to Hamar, and biographer.
He played a leading role in the Norwegian civil resistance during the German occupation of Norway, being a member of the Coordination Committee, and later also Hjemmefrontens Ledelse.
He was a bishop to the diocese of Hamar from 1964 to 1974.
He wrote a biography on Eivind Berggrav in 1959.Johnson completed his examen artium in 1928 at Oslo Cathedral School before studying theology at University of Oslo, where he graduated in 1933.