There is provided a vehicle lower section structure including a pair of rockers respectively provided at both vehicle width direction outer sides of a floor panel of a vehicle so as to extend in a vehicle front-rear direction, each of the rockers being configured including: an outer section that is positioned at the vehicle width direction outer side; an inner section that is integrally formed with the outer section, that is positioned at a vehicle width direction inner side, and that forms a closed cross-section section together with the outer section; and a first shock absorption section that is integrally formed with the outer section and the inner section, and that spans in the vehicle width direction between the outer section and the inner section within the closed cross-section section.