Hans Krag (born 14 December 1904 in Christiania, died 27 January 1984 in Søgne) was a Norwegian author, publisher and translator, known i.a.
for his works on heraldry.
His works include the book Norsk heraldisk mønstring fra Frederik IV's regjeringstid 1699–1730, with Norwegian arms from the reign of Frederick IV, and articles in Heraldisk Tidsskrift.