A guide wire has excellent flexibility of a distal portion thereof, followability for a blood vessel and the like and transmutability of delicate interactions such as resistance produced when the distal portion slides in contact with a wall surface of a blood vessel and the like, and resistance produced when the distal portion bumps against a stenosed section and the like. The guide wire has a core shaft and a coil body covering a distal portion of the core shaft, the coil body being formed by helically winding a stranded wire having three or more elemental wires interwound together, and the stranded wire being hollow and having a first void at the center thereof.
