Decommissioning is a general term for a formal process to remove something from active status. Specific instances include:
- Infrastructure
- Decommissioned highway
- Greenfield status of former industrial sites
- Nuclear decommissioning of power plants
- Military
- Disarmament
- Decommissioning in Northern Ireland of paramilitary weapons
- Demobilization of soldiers
- Ship-Submarine Recycling Program for U.S. nuclear vessels
- Other
- Ship decommissioning