Oil pump may refer to:
- Hydraulic pump, which pressurizes hydraulic fluid in a hydraulic system
 - Oil pump (internal combustion engine), a part of the lubrication system that pressurizes motor oil for distribution around the engine
 - Pumpjack, often used to pump oil out of wells
 - Submersible pump, often used to pump oil out of wells
 - Vacuum pump, of a design which uses an oil seal
 
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