Clinopodium hakkaricum Dirmenci & Firat (Lamiaceae) sp. nova from Hakkari province, SE Anatolia, Turkey is described and illustrated. It clearly differs from the other Clinopodium taxa in Turkey and adjacent areas. Affinities to and differences from C. insulare, C. menthifolium, C. molle and C. nepeta are elaborated. These related species are revised for Turkey and adjacent areas and an identification key is provided. The geographic localities of the examined specimens are presented in a distribution map.