K201 or K-201 may refer to:
*
K-201 (Kansas highway), a former state highway in Kansas
*
JTV-519, a 1,4-benzothiazepine derivative known as K201
*K201, a South Korean grenade launcher, clone of the American
M203 grenade launcher
The M203 is a single-shot 40 mm under-barrel grenade launcher designed to attach to a rifle. It uses the same rounds as the older stand-alone M79 break-action grenade launcher, which utilizes the high-low propulsion system to keep recoil force ...
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