J33 may refer to:
- Allison J33, a turbojet engine
- de Havilland J 33 Venom, a British fighter in service with the Swedish Air Force
- Ground Equipment Facility J-33, a former radar station in California
- LNER Class J33, a British steam locomotive class
- Malaysia Federal Route J33
- Nasal polyp
- Pentagonal gyrocupolarotunda, a Johnson solid (J33)
- Small nucleolar RNA J33
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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