Class 3

The term class 3 could refer to:
* Class 3 containment field
* Class 3 defensive
* Class 3 humanoid
* Class 3 moon, a moon classification
* Class 3 neutronic storm, a type of neutronic storm
* Class 3 nebula, a type of nebula
* Class 3 offense, a violation of Bajoran law
* Class 3 probe, a type of probe
* Class 3 pulse rifle, a type of weapon
* Class 3 surveillance device, a type of surveillance device
You may also be looking for:
* , another series of classifications
Class 03