Silene nerimaniae G. Ecevit Gen, A. Kandemir & I. Gen. sp. nov. (Caryophyllaceae) from east Anatolia (137: Erzincan-Turkey) is described and illustrated. Diagnostic characters, a description, detailed illustrations and taxonomic comments on the species are given. It is compared with the closely related taxon Silene araratica Schischk. ssp. araratica. The geographical distribution of the new species and related species is mapped.