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The arid region of David Gareji, Georgia, is located on the Iori Upland in the southeastern part of the country, in the central part of the South Caucasus. The vegetation of the study area is dominated by steppe with patches of semi-desert communities, but hemixerophilous ’shiblyak’ scrub occurs in relatively small areas. To date, the lichen flora of the David Gareji region has received little attention. The present study recorded 93 species in 38 genera and 17 families, including six species new for Georgia: Aspicilia grossheimii, Diplotomma nivale, Lecidella carpathica, Lobothallia praeradiosa, Melanelia disjuncta and Melanelixia huei.