Provided is a percussion instrument including a substantially cylindrical barrel and a weight fixed to the barrel. More specifically, a plurality of weights 5A to 5D may be provided on the inner circumferential surface of a shell 2 of a drum 1 (a percussion instrument). The weights 5A to 5D may be provided at positions where the weights 5A to 5D have four-fold rotational symmetry in the circumferential direction of the shell 2. The weights 5A to 5D may be each provided between lugs 3 that are provided adjacent to each other on the outer circumferential surface of the shell 2.