The Hammer Staff (ハンマーメイス Hanmā Meisu?, lit. "Hammer Mace") is a staff that can be wielded by Donald Duck in Kingdom Hearts II and in Kingdom Hearts II Final Mix. It is the first staff that can purchased.
The Hammer Staff's handle is brown with an orange and silver tip with a yellow, zig-zagging stripe on it. The staff’s head is a red, double-headed, bellows-style hammer. Both sides of the hammer are orange with a yellow five-pointed star decorating it. The handle of the staff extends slightly through the middle of this hammer, terminating in a yellow diamond.