An alphabetic enumeration of the species of orchids recorded from Northwestern Himalaya is supplied. While the classical work by Duthie listed a number of about 173 species, later finds bring this number up to about 250 species of which 24 are here recorded for the first time. This includes two proposed new speciesEria occidentalsSeid. andFlickingeria hesperisSeid. An attempt has been made to bring the nomenclature in accordance with modern concepts and rules, one new combination,Aorchis roborovskii(Maxim.) Seid., is proposed.A plea is made for the establishment of strictly guarded reservations in order to conserve the remains of the fast dwindling orchid flora.