Helical

Helical may refer to:

• Helix, the mathematical concept for the shape
• Helical engine, a proposed spacecraft propulsion drive
• Helical spring, a coilspring
• Helical plc, a British property company, once a maker of steel bar stock
• Helicoil, a mechanical thread repairing insert
• H-el-ical//, stage name for Hikaru, Japanese singer