A pneumatic tire, comprising: a plurality of circumferential direction main grooves (20, 22, 24) that are formed at a tread section and that extend around a tire circumferential direction; a land portion that is formed between the plurality of circumferential direction main grooves (20, 22, 24); first arc shaped faces (34A-1R, 34B-1R, 38A-1R, 38B-1R) that are formed at both tire width direction edges of the land portion, and that have an arc shape about a center within the land portion as viewed in a tire radial direction cross-section; and an outer second arc shaped face (34A-2R, 38A-2R) that is formed at an edge on a fitted tire outer side of the land portion, that is formed continuously from the first arc shaped face toward a tire width direction outer side of the land portion and toward a groove bottom, and that has an arc shape, about a center within the land portion as viewed in the tire radial direction cross-section, having a smaller radius of curvature (R2-34A, R2-38A) than the first arc shaped face (R1-34A, R1-38A, R1-34B, R1-38B), wherein: an inner second arc shaped face (34B-2R, 38B-2R) is formed at a fitted tire inner side of the land portion so as to be continuous from the first arc shaped face toward the tire width direction outer side of the land portion and toward a groove bottom, and having an arc shape about a center within the land portion as viewed in the tire radial direction cross-section; and, as viewed in the tire radial direction cross-section, a radius of curvature of the inner second arc shaped face (R2-34B, R2-38B) is smaller than the radius of curvature of the first arc shaped face (R1-34A, R1-38A, R1-34B, R1-38B) characterised in that the radius of curvature of the inner second arc shaped face (R2-34B, R2-38B) is smaller than the radius of curvature of the outer second arc shaped face (R2-34A, R2-38A). a plurality of circumferential direction main grooves (20, 22, 24) that are formed at a tread section and that extend around a tire circumferential direction; a land portion that is formed between the plurality of circumferential direction main grooves (20, 22, 24); first arc shaped faces (34A-1R, 34B-1R, 38A-1R, 38B-1R) that are formed at both tire width direction edges of the land portion, and that have an arc shape about a center within the land portion as viewed in a tire radial direction cross-section; and an outer second arc shaped face (34A-2R, 38A-2R) that is formed at an edge on a fitted tire outer side of the land portion, that is formed continuously from the first arc shaped face toward a tire width direction outer side of the land portion and toward a groove bottom, and that has an arc shape, about a center within the land portion as viewed in the tire radial direction cross-section, having a smaller radius of curvature (R2-34A, R2-38A) than the first arc shaped face (R1-34A, R1-38A, R1-34B, R1-38B), wherein: an inner second arc shaped face (34B-2R, 38B-2R) is formed at a fitted tire inner side of the land portion so as to be continuous from the first arc shaped face toward the tire width direction outer side of the land portion and toward a groove bottom, and having an arc shape about a center within the land portion as viewed in the tire radial direction cross-section; and, as viewed in the tire radial direction cross-section, a radius of curvature of the inner second arc shaped face (R2-34B, R2-38B) is smaller than the radius of curvature of the first arc shaped face (R1-34A, R1-38A, R1-34B, R1-38B) characterised in that the radius of curvature of the inner second arc shaped face (R2-34B, R2-38B) is smaller than the radius of curvature of the outer second arc shaped face (R2-34A, R2-38A). an inner second arc shaped face (34B-2R, 38B-2R) is formed at a fitted tire inner side of the land portion so as to be continuous from the first arc shaped face toward the tire width direction outer side of the land portion and toward a groove bottom, and having an arc shape about a center within the land portion as viewed in the tire radial direction cross-section; and, as viewed in the tire radial direction cross-section, a radius of curvature of the inner second arc shaped face (R2-34B, R2-38B) is smaller than the radius of curvature of the first arc shaped face (R1-34A, R1-38A, R1-34B, R1-38B) characterised in that the radius of curvature of the inner second arc shaped face (R2-34B, R2-38B) is smaller than the radius of curvature of the outer second arc shaped face (R2-34A, R2-38A).