H12

H12 may refer to:

Vehicles

• Bell H-12, an American utility helicopter
• Curtiss H-12, an American flying boat
• Hiller H-12, an American helicopter
• HMS Achates (H12), a Royal Navy A-class destroyer
• HMS H12, a Royal Navy H-class submarine
• LSWR H12 class, a British steam railcar

Other uses

• H-12, Islamabad, site of a campus of the National University of Sciences & Technology
• Highway H12 (Ukraine)
• London Buses route H12, a Transport for London contracted bus route