The term class 1 might refer to:

• Class I Heavy Cruiser, alternate name for the Constitution-class
• Class 1 nebula, a type of nebula
• Class 1 probe, a type of probe
• Class 1 overseer, a title
• Class 1 shuttle, a type of spacecraft
• Class 1 supervisor, a title
• Class 1 transport, a type of spacecraft
• Class 1 wormhole, a type of wormhole

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