A holy war is a religious war primarily caused or justified by differences in religion.

Holy War may also refer to:

Sports rivalries Holy War (Boston College–Notre Dame), college football Holy War (BYU–Utah), college football Holy War (Saint Joseph's–Villanova), college basketball Holy War (Kraków), Wisła Kraków vs. KS Cracovia, professional football

Music Holy War (Dragonland album), 2002 Holy War (Thy Art Is Murder album), 2015 "Holy War" (Toto song), 2015 "Holy Wars... The Punishment Due", a song by Megadeth, 1990 Holy Wars (album), an album by Tuxedomoon, 1985 "Holy War", a song by Jon Butcher Axis from Wishes "Holy War", a song by Alicia Keys from Here "Holy War, a song by Lovebites from Electric Pentagram "The Holy War", a song by Thin Lizzy from Thunder and Lightning

Other uses Holy War (locomotive), a steam locomotive on the Bala Lake Railway in Wales Holy War (board game), a 1979 board wargame Holy Wars (film), a 2010 documentary film The Holy War, a 1682 novel by John Bunyan Holy War, Inc., a 2001 book by Peter Bergen

See also Fire Emblem: Genealogy of the Holy War Holy War, Batman! "Svyaschennaya Voyna", a song written on the day after the Nazi invasion of the USSR Crusade (disambiguation) Jihad (disambiguation) Dharamyudh (disambiguation) Religious conflict (disambiguation) Sacred War (disambiguation) War of Religion (disambiguation)