In this study scorpion fauna of Zanjan province(Northwestern of Iran) is searched which has not previously studied in detail. In this work, in 2013 and 2014, a total of 99 scorpion specimens were collected and Androctonus crassicauda(Olivier, 1807), Hottentotta salucyi (Simon, 1880), H. zagrosensis Kovarik, 1997, Odontobuthus doriae (Thorell, 1876), Mesobuthus eupeus eupeus (C. L. Koch, 1839), and Scorpio maurus townsendi (Pocock, 1900) taxa were identified. Among them H.salucyi, H. zagrosensis, O. doriae, M.e. eupeus, and S. m. townsendi are recorded for the first time from the Zenjan province. Zogeographical and ecological remarks are given