Megiddo (Hebrew: מגידו) is a Hebrew place name that can refer to:
- Tel Megiddo, site of an ancient city in northern Israel's Jezreel valley
- Battle of Megiddo (15th century BC)
- Battle of Megiddo (609 BC)
- Battle of Megiddo (1918)
- Megiddo Airport, a domestic airport in Israel
- Megiddo church
- Megiddo, Israel, a kibbutz in Israel
- Megiddo Junction, a motorway junction in northern Israel
- Armageddon (Har Megiddo)
It can also refer to:
- Megiddo Mission and Megiddo Church, Rochester, NY
in film and television:
- Megiddo: The Omega Code 2, a 2001 American film; a prequel/sequel to the American thriller film The Omega Code (1999)
- Prince Megiddo, a fictional character in the Japanese television series Kagaku Sentai Dynaman
in music:
- Megiddo (album), a 1997 album by the Norwegian black-metal band Satyricon
- Megiddo (Lauren Hoffman album), a 1997 album by American singer Lauren Hoffman
in people:
- Nimrod Megiddo, a mathematician and computer scientist
in other:
- Megiddo, a 1984 board game based on Pente designed by Steve Baldwin
- Megiddo (battle honour), a battle honour awarded to British Empire units that fought at the 1918 Battle of Megiddo
- Project Megiddo, a report researched and written by the United States Federal Bureau of Investigation