1948 War usually refers to the 1948 Palestine war, which had two phases:
- 1947–48 Civil War in Mandatory Palestine, civil war period between Arab forces and Jewish forces
- 1948 Arab–Israeli War, war of aggression period between a coalition of Arab states and Palestine Arab forces and the state of Israel
It may also refer to:
- Alwaziri coup, a violent civil war in Yemen
- Costa Rican Civil War, civil war between government and rebels