Jan Ridderbos (24 November 1879 in Bedum – 4 July 1960) was a minister in the Reformed Churches in the Netherlands and since 1912 professor of Old Testament at the Theological College (Old Street) in Kampen.
Ridderbos was one of the professors who put a clear stamp on the Reformed Churches during the Second World War.
Ridderbos, with Gerrit Cornelis Berkouwer, had great influence on the reformed church's life before World War II.
He was "preadviseur" of the synod in property damage Geelkerken (1926) and in the case involving Klaas Schilder who was accused of schism (1942 and 1944).
As a scientist, he has especially many Reformed formed theologians and was his view of the authority of the Bible decisive in his circle until sometime in the early 1960s.