A pneumatic tire, comprising: a tread portion extending in a tire circumferential direction and having an annular shape; a pair of sidewall portions arranged on both sides of the tread portion ; and a pair of bead portions arranged inward of the pair of sidewall portions in a tire radial direction, wherein the tread portion comprises: a plurality of longitudinal grooves extending in the tire circumferential direction; a plurality of lateral grooves extending in a tire lateral direction; and a plurality of blocks defined by the plurality of longitudinal grooves and the plurality of lateral grooves , characterized in that at least three blocks of the plurality of blocks, which include an outermost block positioned on an outermost side in the tire lateral direction and are adjacent to each other in the tire lateral direction, and at least two longitudinal grooves positioned between the at least three blocks are present on a platform , which is raised from a groove bottom of each of the plurality of lateral grooves , has a flat top surface, and has a shape protruding toward both sides in the tire circumferential direction with respect to the at least three blocks , a groove bottom of a longitudinal groove being flush with the top surface of the platform or positioned on a block road contact surface side with respect to the top surface of the platform , on the groove bottom of a longitudinal groove adjacent to the outermost block , a raised bottom portion raised from the groove bottom of the longitudinal groove is provided, and the raised bottom portion connects the outermost block and the block adjacent to the outermost block . a tread portion extending in a tire circumferential direction and having an annular shape; a pair of sidewall portions arranged on both sides of the tread portion ; and a pair of bead portions arranged inward of the pair of sidewall portions in a tire radial direction, wherein a plurality of longitudinal grooves extending in the tire circumferential direction; a plurality of lateral grooves extending in a tire lateral direction; and a plurality of blocks defined by the plurality of longitudinal grooves and the plurality of lateral grooves , characterized in that at least three blocks of the plurality of blocks, which include an outermost block positioned on an outermost side in the tire lateral direction and are adjacent to each other in the tire lateral direction, and at least two longitudinal grooves positioned between the at least three blocks are present on a platform , which is raised from a groove bottom of each of the plurality of lateral grooves , has a flat top surface, and has a shape protruding toward both sides in the tire circumferential direction with respect to the at least three blocks , a groove bottom of a longitudinal groove being flush with the top surface of the platform or positioned on a block road contact surface side with respect to the top surface of the platform , on the groove bottom of a longitudinal groove adjacent to the outermost block , a raised bottom portion raised from the groove bottom of the longitudinal groove is provided, and the raised bottom portion connects the outermost block and the block adjacent to the outermost block . <EOS>