Zerconid mites collected from East and West Azerbaijan provinces of Iran were evaluated from 2013–2017. Eleven Zercon and one Prozercon species were found based on the collected materials. Among them, Zercon ahadiyati sp. nov., Z. azerbaijanensis sp. nov. and Z. tabrizensis sp. nov. were distinguished as new species and described. Besides them, three species, including Z. agnostus, Z. andrei and Z. apladellus were recorded for the first time from the country. Also, an updated key and distribution map to the Iranian Zercon mites, including the new species, were given.
