ABSTRACT Oak cynipid galls were collected in oak forests of Kordestan, Kermanshah and Ilam provinces during 2004-2005. Collected galls were kept under laboratory conditions at room temperature (20-25 ºC) in transparent plastic vials until cynipid wasps and parasitoids emerged. As the result 11 parasitoid species associated with oak cynipid galls were reared: Sycophila biguttata (Swederus, 1795), S. flavicollis (Walker, 1834)*, Eurytoma brunniventris Ratzeburg, 1852, Megastigmus dorsalis (Fabricius, 1798), M. dumicola Bouèek, 1982*, M. stigmatizans (Fabricius, 1798), Ormyrus nitidulus (Fabricius, 1804), O. pomaceus (Geoffroy, 1785), Cecidostiba fungosa (Geoffroy, 1785)*, Eupelmus annulatus Nees, 1834* and Baryscapus anasillus Graham, 1991*. Five species (marked *) are new records for Iran. Data on distribution and host associations are given.