ABSTRACT: : The result of a field research, focused on the suborder Heteroptera and conducted in several localities in Elazığ province in Eastern Anatolian region of Turkey, is presented. A total of 66 species belonging to following families are recorded: Alydidae (1), Berytidae (2), Coreidae (2), Geocoridae (5), Gerridae (1), Heterogasteridae (1), Lygaeidae (4), Miridae (9), Nabidae (1), Oxycarenidae (2), Pachygronthidae (1), Pentatomidae (17), Reduviidae (3), Rhopalidae (8), Rhyparochromidae (2), Scutelleridae (3) and Tingidae (4). Among them, 27 species are recorded from Elazığ for the first time and Orthops (Montanorthops) pilosulus Jakovlev, 1877 constitutes a new record for the Heteroptera fauna of Turkey. New records for following four species which were recorded only once from Turkey, are given: Agatharchus (Agatharchus) ponticus Belousova, 1999, Limacocarenus curtulus Kiritshenko, 1914, Phytocoris (Eckerleinius) niveatus Horváth, 1891 and Reuteria riegeri torosensis Çerçi, Tezcan & Özgen, 2020. Finally, a checklist of Heteroptera species of Elazığ province, based on previous literature and new records in this paper, is prepared.