A pneumatic tire in which a tread of the tire is partitioned into a plurality of land portions (12A, 12B, 12C, 12D) that are continuous in a tire circumferential direction, by a plurality of circumferential grooves (11a, 11b, 11c, 11d) extending in the tire circumferential direction, the land portions (12A, 12B, 12C, 12D) continuous in the tire circumferential direction are divided into a plurality of blocks (14A, 14B, 14C, 14D) by a plurality of widthwise grooves (13a, 13b, 13c, 13d) extending in a tire widthwise direction, and the blocks (14A, 14B, 14C, 14D) are segmented in a plurality of segmented blocks (14Ap, 14Bp, 14Cp, 14Dp) by a plurality of widthwise sipes extending in the tire widthwise direction, wherein: the circumferential grooves (11a, 11b, 11c, 11d) include a pair of outermost side circumferential grooves (11d, 11d) on outermost sides in the tire widthwise direction and a plurality of inner side circumferential grooves (11a, 11b, 11c) arrayed between the outermost side circumferential grooves (11d, 11d), the inner side circumferential grooves (11a, 11b, 11c) have a groove width that is smaller than that of the outermost side circumferential grooves, to such a degree to allow the land portions on opposite sides thereof to come into contact with each other upon grounding, a plurality of recessed portions of a shape cut in a radial direction from a tread face are formed along the tire circumferential direction on block wall faces (14Af, 14Bf), which are opposed to each other, of the blocks (14A, 14B) on opposite sides of at least one of the inner side circumferential grooves, and the recessed portions are formed at positions displaced from each other in the tire circumferential direction, characterized in that: the recessed portions are formed at positions that are displaced in the tire circumferential direction from and do not overlap with the widthwise grooves (13a, 13b) that divide the land portions (12A, 12B) to which the recessed portions are opposed across the inner side circumferential groove. the circumferential grooves (11a, 11b, 11c, 11d) include a pair of outermost side circumferential grooves (11d, 11d) on outermost sides in the tire widthwise direction and a plurality of inner side circumferential grooves (11a, 11b, 11c) arrayed between the outermost side circumferential grooves (11d, 11d), the inner side circumferential grooves (11a, 11b, 11c) have a groove width that is smaller than that of the outermost side circumferential grooves, to such a degree to allow the land portions on opposite sides thereof to come into contact with each other upon grounding, a plurality of recessed portions of a shape cut in a radial direction from a tread face are formed along the tire circumferential direction on block wall faces (14Af, 14Bf), which are opposed to each other, of the blocks (14A, 14B) on opposite sides of at least one of the inner side circumferential grooves, and the recessed portions are formed at positions displaced from each other in the tire circumferential direction, characterized in that: the recessed portions are formed at positions that are displaced in the tire circumferential direction from and do not overlap with the widthwise grooves (13a, 13b) that divide the land portions (12A, 12B) to which the recessed portions are opposed across the inner side circumferential groove.