A wire straightening apparatus that straightens kinks of a wire that is fed along a wire feeding path includes one or a plurality of straightening mechanisms. Each straightening mechanism includes a plurality of first straightening rollers and one or a plurality of second straightening rollers. Each roller has a groove along its outer periphery, the groove gradually deepening toward a bottom portion. The bottom portion of the groove of each first straightening roller is spaced from the wire feeding path in a first direction, and the bottom portion of the groove of each second straightening roller is spaced from the wire feeding path in a second direction opposite to the first direction. With this structure, the wire can be made to follow a path that meanders as viewed from a direction perpendicular to axes of the straightening rollers.