A vehicle front section structure includes a front side member including an inner wall and an outer wall facing each other in a vehicle width direction; a load receiving section that is provided or formed at a vehicle front-rear direction front end portion of the front side member, and that receives load; and a weakened portion that is formed at least in the inner wall and the outer wall, at a location that is rear side in a vehicle front-rear direction of the front side member than the load receiving section, and that has lower rigidity than the rigidity of other locations in the front side member.