Hans Gustav Fagius, né Andersson (born 10 April 1951), is a Swedish classical organist and pedagogue.
Fagius was born in Norrköping and studied organ with Bengt Berg before entering the Royal College of Music, Stockholm, where he studied with Alf Linder.
After graduating in 1974 he studied organ privately with Maurice Duruflé in Paris.
[1] Fagius has recorded many albums, including the complete organ works of J.S.
Bach and the complete organ works of Maurice Duruflé.