Hermann Bahlsen (born 14 November 1859 in Hannover; died 6 November 1919 in Hannover) was a German entrepreneur.
In 1889, Bahlsen founded Hannoversche Keksfabrik H. Bahlsen in Hannover (now Bahlsen GmbH & Co. KG ). He sold Leibniz-cookies (Leibniz-Keks).