Piston may refer to:
- Piston Honda, a character in Punch-Out!! featuring Mr. Dream and the Punch-Out!! Wii console games who is ranked the champion of the Minor Circuit and holds the number three rank in the Major Circuit, respectively.
- Piston Hurricane, a character in the Punch-Out!! arcade game and the Super Punch-Out!! console game who holds the number seven rank and number one rank in the Minor Circuit, respectively.
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