Maintenance may refer to:
Biological science
- Maintenance respiration
Non-technical maintenance
- Alimony, also called maintenance in British English
- Champerty and maintenance, two related legal doctrines
- Child support, also commonly called "child maintenance"
- Feudal maintenance, system of funding armies
Technical maintenance
- Maintenance (technical)
- Aircraft maintenance
- Bicycle maintenance
- Bus maintenance
- Car maintenance
- Train maintenance
- Property maintenance
- Railroad track maintenance
- Software maintenance
Some kinds of technical maintenance
- Condition-based maintenance
- Corrective maintenance
- Planned maintenance
- Predictive maintenance
- Preventive maintenance
- Total productive maintenance