Öz This study is based on a morphological invesligation of hair specimens which belong to 41 species of mammalian orders; Insectivora, Chiroptera, Rodentia, Carnivora and Arctiodactyla, occured in Turkey. From the hair morphology point of view 8 main hair types have been distinguished namely, spicate, mosaic, wavy crenated, annular, lanceolate, vase, diamond and Chevron type. The morphological characteristics of hair have been examined separately and their photographs given.