Benedictus Hubertus Danser (May 24, 1891, Schiedam – October 18, 1943, Groningen), often abbreviated B. H. Danser, was a Dutch taxonomist and botanist. Danser specialised in the plant families Loranthaceae, Nepenthaceae, and Polygonaceae. In 1928, Danser published an exhaustive revision of the genus Nepenthes, recognising 65 species in "The Nepenthaceae of the Netherlands Indies". While nowadays more than 140 species of Nepenthes are known, Danser's work is still referenced by specialists in the field.