Polymixis ivanchiki is a moth of the Noctuidae family. It is found in the Near East (Israel, Lebanon and south-western Iran) and the southern parts of Turkey (the provinces of Hatay and Urfa). The wingspan is 38–40 mm. The head, thorax and forewings are dark brownish grey mixed with black hair-like scales. The hindwings are shining white with some black scales on the veins. The discal spot is pale gray and the terminal line is black.