Class B

• Army Service Uniform
• B-class (disambiguation)
• Barry Railway Class B
• Class A (disambiguation)
• Class A office space
• Class B (baseball)
• Class B (classification)
• Class B drug
• Class B share
• Class B star
• Class C (disambiguation)
• Fireworks policy in the United States
• LNWR Class B
• List of North American broadcast station classes
• Power amplifier classes
• Title 47 CFR Part 15
• Type B (disambiguation)