Marius Oprea (Romanian pronunciation: [ˈmari.us ˈopre̯a]; born 1964) is a Romanian historian (specialized in recent history), poet and essayist.

Born in Târgovişte, he studied history at the University of Bucharest and he has a PhD with a thesis on the role and evolution of the Communist-era secret police, the Securitate between 1948 and 1964 (Rolul şi evoluţia Securităţii, 1948-1964). Oprea currently works as a journalist and researcher at the Romanian Institute of Recent History (IRIR). He also serves as the president of the Institute for the Investigation of Communist Crimes in Romania^[1]

He made his debut as a poet in the collective volume Pauza de respiraţie ("Pause for Breathing"), together with Simona Popescu, Caius Dobrescu, and Andrei Bodiu.

Marius Oprea lives with his family in Braşov.

Published volumes

• Banalitatea răului ("The Platitude of Evil")
• O istorie a Securităţii în documente ("A History of the Securitate through Documents")
• Securiştii partidului ("The Party's Securitate Members")
• Serviciul de cadre al PCR ca poliţie politică ("The Personnel Office of the Romanian Communist Party as a Political Police"; coauthors: Nicolae Videnie, Ioana Cirstocea, Andreea Năstase, Stejărel Olaru)
• Ziua care nu se uită. 15 noiembrie 1987, Braşov ("A Day That Cannot Be Forgotten. 15 November, Braşov"; coauthor Stejărel Olaru)
• Solo de trambulină ("Trampoline Solo", poems)
• Moştenitorii Securităţii ("Heirs to the Securitate")
• Chipul morţii: dialog cu Vladimir Bukovski despre natura comunismului ("The Face of Death: a Dialogue with Vladimir Bukovsky about the Nature of Communism", 2006)
• Bastionul cruzimii: o istorie a Securităţii, 2008)
• Sase feluri de a muri ("Six ways of dying", 2009)