The data on 25 species of eumenine wasps collected in Nakhchivan Autonomous Republic of Azerbaijan in July, 2018 are given. Ten species are new for Azerbaijan; other 5 species are new for Nakhchivan Autonomous Republic. The known fauna of this republic numbers 66 species of eumenine wasps. A new synonymy is proposed for Eustenancistrocerus tegularis (Morawitz, 1885) = E. israelensis Giordani Soika, 1952, syn. n.; the lectotype of Lionotus tegularis Morawitz, 1885 is designated.
