Friedrich Bernhard Marby (10 May 1882 – 3 December 1966) was a German rune occultist and Germanic revivalist.
He is best known for his revivalism and use of the Armanen runes row.
Marby was imprisoned during the Third Reich, which may have been due to a denunciation by Karl Maria Wiligut.
According to the Odinist magazine Vor Trú, Marby "was one of the most (if not the most) important figures in the realm of runic sciences" with an impact felt not only by contemporaries but "among today's researchers and practitioners."