According to one embodiment, a semiconductor device includes a plurality of wires arranged in parallel at a predetermined pitch, a plurality at first contacts that are each connected to an odd-numbered wire among the wires and are arranged in parallel in an orthogonal direction with respect to a wiring direction of the wires, and a plurality of second contacts that are each connected to an even-numbered wire among the wires and are arranged in parallel in an orthogonal direction with respect to the wiring direction of the wires in such a way as to be offset from the first contacts in the wiring direction of the wires, in which the first contacts are offset from the second contacts by a pitch of the wires in an orthogonal direction with respect to the wiring direction of the wires.