Pumping may refer to:
* The operation of a pump, for moving a liquid from one location to another
**The use of a breast pump for extraction of milk
* Pumping (audio), a creative misuse of dynamic range compression
* Pumping (computer systems), the number of times data is transmitted per clock cycle
* Pumping (oil well), injecting chemicals into a wellbore
* Pumping (noise reduction), an unwanted artifact of some noise reduction systems
* Pumping lemma, in the theory of formal languages
* Gastric lavage, cleaning the contents of the stomach
* Optical pumping, in which light is used to raise electrons from a lower energy level to a higher one
* Pump (skateboarding), accelerating without pushing off of the ground
* Pumping (My Heart), "Pumping" (My Heart), a 1976 song by Patti Smith Group
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