Impact may refer to several events:
- The First Impact, when the Black Moon of Lilith fell to Earth.
- The Second Impact, caused when an expedition team did a "contact experiment" involving Adam.
- The Third Impact in The End of Evangelion, when Adam and Lilith were brought together, creating an Anti-A.T.-Field and reverting life on Earth to LCL.
- Near Third Impact in Evangelion 2.0, an event triggered by the awakening of Evangelion Unit-01.
- The Fourth Impact in Evangelion 3.0, an event triggered by the awakening of Evangelion 13.