Jan Kjærstad (born 6 March 1953 in Oslo) is a Norwegian author. Kjærstad is a theology graduate from MF Norwegian School of Theology and the University of Oslo (cand. theol.). He has written a string of novels, short stories and essays and was editor of the literary magazine Vinduet ("The Window"). He has received a number of prizes, the most important being the Nordic Council Literature Prize, which he received for the perspectivist trilogy about the TV personality Jonas Wergeland (The Seducer, The Conqueror and The Discoverer).
His books have been translated to English, French, German, Danish, Swedish, and Hungarian, among others.