A graphene wiring of an embodiment includes graphene, first conductive layers, second conductive layers, and a third conductive layer. The first conductive layers are connected to first sides of the graphene opposite to each other in a longitudinal direction of the wiring. The second conductive layers are connected to second sides of the graphene opposite to each other in a widthwise direction of the wiring. The third conductive layer is connected to a top surface of the graphene. The first and second conductive layers are connected to each other.