Allium farashinense Balos & Geçit (Amaryllidaceae) is described as a new species from Şırnak Province, eastern Turkey. Diagnostic characteristics, a comprehensive description, images of the species, and a distribution map are provided. Based on morphology, it belongs to Allium subgen. Polyprason sect. Scorodon. It resembles A. anacoleum, A. capitellatum, A. longivaginatum and A. microspathum, but morphologically differs from them by e.g. bulb size, stem length, leaf sheath, leaf shape, perigon colour, outer and inner tepals, and different filaments.