A guide wire includes a wire main body that has a plate-like portion in a distal end portion of the wire main body and a reinforcement portion that is provided on at least one surface of the plate-like portion and reinforces the plate-like portion. The reinforcement portion is made up of two wire rods, and both end portions of the reinforcement portion are fixed to the plate-like portion. The plate-like portion is formed in a ribbon shape, and the reinforcement portions are diagonally provided on the same plane of the plate-like portion, and intersect each other. The guide wire has a coil that covers the plate-like portion and the reinforcement portion.