may refer to:
- Pest (animal) , an animal (usually an insect), or sometimes a plant (weed) with characteristics that are injurious or harmful to humans
- PEST Analysis (Political, Economic, Social and Technological analysis), a framework for analysis of macroenvironmental factors
- Pest (music) , a band on the Ninja Tune independent record label
- A member of the Opie And Anthony Army
;Places:
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