Parang agamo atau parang suci (bahaso Latin: bellum sacrum) adolah sabuah parang nan utamonyo disababkandek pabedaan dalam agamo. Pado zaman modern, debat umum ateh aspek agama, ekonomi, atau etnis dari sabuah konflik marupokan hal umum dalam sabuah perang nan tajadi. Manuruik Encyclopedia of Wars, dari 1,763 konflik sijarah nan dikataui/dicataik, 123 parang, atau 6.98%, manjadikan agamo sabagai sabab utamonyo, dan 66 parang diantaronyo, atau 53.66%, bakaitan jo Islam.[1]The Great Big Book of Horrible Things karya Matthew White menjadikan agama sebagai sebab ke-13 dari 100 kejahatan mematikan di dunia.[2]
Nigel Cliff, Holy War: How Vasco da Gama's Epic Voyages Turned the Tide in a Centuries-Old Clash of Civilizations, HarperCollins, ISBN9780062097101, 2011.
Roger Crowley, 1453: The Holy War for Constantinople and the Clash of Islam and the West, Hyperion, ISBN9781401305581, 2013.
Reuven Firestone, Holy War in Judaism: The Fall and Rise of a Controversial Idea, Oxford University Press, ISBN9780199860302, 2012.
Sohail H. Hashmi, Just Wars, Holy Wars, and Jihads: Christian, Jewish, and Muslim Encounters and Exchanges, Oxford University Press, ISBN9780199755035, 2012.
James Turner Johnson, The Holy War Idea in Western and Islamic Traditions, Pennsylvania State University Press, ISBN9780271042145, 1997.
Steven Merritt Miner, Stalin's Holy War: Religion, Nationalism, and Alliance Politics, 1941-1945, Univ of North Carolina Press, ISBN9780807862124, 2003.
Christian Mühling: Die europäische Debatte über den Religionskrieg (1679-1714). Konfessionelle Memoria und internationale Politik im Zeitalter Ludwigs XIV. (Veröffentlichungen des Instituts für Europäische Geschichte Mainz, 250) Göttingen, Vandenhoeck&Ruprecht, ISBN9783525310540, 2018.
David S. New, Holy War: The Rise of Militant Christian, Jewish and Islamic Fundamentalism, McFarland, ISBN9781476603919, 2013.
