Smerch (Russian word for whirlwind) might refer to:
BM-30 Smerch, a modern multiple rocket launcher system Smerch (radar), fighter radar on the Mikoyan-Gurevich MiG-25 Whirlwind (1988 film), 1988 action film produced in the Soviet Union Russian monitor Smerch, launched 1863
Smerch may also refer to: a portmanteau nickname given to the British actor Stephen Merchant