Abstract: A double-sided massager includes a housing with a slot sized for receiving a hand. Opposing sets of massaging members are arranged on the upper and lower sides of the slot for simultaneously massaging both sides of the hand. The massaging members are driven in a reciprocating up and down motion by crankshafts driven by a motor. One set of massaging members is attached to a movable carrier, which is adjustable so that the spacing between the opposing sets of massaging members can be varied for fitting hands of different thickness. In a second embodiment, the housing is wide enough for massaging both hands simultaneously. In a third embodiment, a pair of housings, each sized for receiving one hand, are hinged together for massaging the hands in a vertical position.