The Makran coast of Balochistan (Pakistan) is rich in terms of biodiversity particularly marine invertebrates. The study based on comprehensive assessment of the morphological and taxonomical description of two polychaete species (Eunice petersi Fauchald, 1992 and Hesione intertexta Grube, 1878). The newly recorded polychaete species for the coast of Pakistan belong to the Eunicidae and Hesionidae families and were identified in benthic samples collected from the intertidal zone on Garyan and Bandari beaches at Jiwani of the Makran coast (Northern Arabian Sea). The descriptions, photographs, and drawings of the taxonomic characters of species and their distribution are provided. The specimens are deposited in the repository of the Marine Reference Collection and Resource Centre, University of Karachi.