Abstract: Wire separator structure and method for separating spark plug wires and the like. The structure includes a body member having a plurality of cylindrical openings therethrough including parallel transversely spaced apart axes of generation in the same plane, and a slot extending across the plane and parallel to the cylindrical openings have dovetail portions on both sides of the plane which body member is split in the plane of the axes of the cylindrical openings therethrough to provide separate body parts and a generally X-shaped wedge member positioned within the slot in the body member to hold the parts of the body member together with the wires to be separated within the cylindrical openings in the body member. In the method of the invention, wires to be separated are placed in cylindrical openings in a split body member and the parts of the split body member are secured together by an X-shaped wedge member extending axially of the cylindrical openings into dovetail slots in the body parts.