Andrei Oișteanu (Romanian pronunciation: [anˈdrej o.iʃˈte̯anu]; born September 18, 1948) is a Romanian historian of religions and mentalities, ethnologist, cultural anthropologist, literary critic and novelist. Specialized in the history of religions and mentalities, he is also noted for his investigation of rituals and magic and his work in Jewish studies and the history of antisemitism. After the Romanian Revolution, he also became noted for his articles and essays on the Holocaust in Romania.