Helical may refer to:
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Helix
A helix () is a shape like a corkscrew or spiral staircase. It is a type of smooth space curve with tangent lines at a constant angle to a fixed axis. Helices are important in biology, as the DNA molecule is formed as two intertwined helices ...
, the mathematical concept for the shape
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Helical engine, a proposed spacecraft propulsion drive
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Helical spring, a coilspring
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Helical plc, a British property company, once a maker of steel bar stock
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Helicoil, a mechanical thread repairing insert
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H-el-ical//, stage name for Hikaru, Japanese singer
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