B12 (disambiguation)

• Alpina
• B12 (New York City bus)
• B12 (band)
• Bensen B-12
• Brandon C. Rodegeb
• Buffet Crampon
• Caro–Kann Defence
• Chery B12
• Chester Bennington
• HLA-B12
• IgG1-b12
• LNER Class B12
• Mallee Highway
• Martin B-12
• Nissan Sunny B12
• Queensland B12 class locomotive
• Vitamin B12