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