This study was made to reveal the plants used as traditional folk medicine in Oltu (Erzurum). For this purpose, the field works have been done in July and August of 2012, February and April on 2013. The information such as local names, ailments treated or therapeutic effects, plant parts used, methods of administration, dosage have been recorded. As a result of interviews with the people living in the area, it has been determined that plants were very well known and used for almost everything by the older persons and most of these plants were recognized and known usage of that plants, even if have not been used by new generation in region. In the Oltu region, the 40 plant species appeared in 22 different families were defined. All collected folk species prepared voucher specimen were deposited in the Herbarium of Anadolu University Faculty of Pharmacy (ESSE).