Abstract: An automatic can smasher having a frame assembly with a pair of parallel channel members in a spaced relationship for receiving a can to be smashed. A motor is attached to the underside of the frame assembly. The motor drives a plunger arm assembly having a reciprocating plunger that compresses and smashes the can. A switch mounted on a switch mounting plate is operated when a can is placed within the frame assembly. The switch activates the motor and the reciprocating plunger. A hole through the frame assembly in front of the switch mounting plate allows the smashed can to fall through the frame assembly. A can receptacle can be placed over the frame assembly for placement of a plurality of cans and for feeding the cans one at a time into the frame assembly. When the plunger is retracted, one smashed can drops through the hole in the frame assembly, the switch is released and opened and the next can is allowed to fall into place for being smashed.