A pneumatic tire, comprising: a tread portion extending in a tire circumferential direction and having an annular shape; a pair of sidewall portions disposed on both sides of the tread portion; and a pair of bead portions each disposed on a tire radial direction inner side of the pair of sidewall portions; the tread portion being provided with four main grooves (11, 12, 13, 14) comprising a pair of center main grooves (11, 12) and a pair of shoulder main grooves (13, 14) extending in the tire circumferential direction; a center land portion, a pair of intermediate land portions (22, 23) each located on an outer side of the center land portion, and a pair of shoulder land portions (24, 25) each located on an outer side of the pair of intermediate land portions (22, 23) being defined by the main grooves (11, 12, 13, 14), with a mounting direction of the pneumatic tire being designated with respect to a vehicle; the shoulder land portion on a vehicle outer side and the intermediate land portion on the vehicle outer side each comprising a plurality of lug grooves (31, 32) extending in a tire width direction while being curved; one end of each of the plurality of lug grooves in the shoulder land portion on the vehicle outer side reaching at least a ground contact edge, while an other end terminates in the shoulder land portion on the vehicle outer side; one end of each of the plurality of lug grooves in the intermediate land portion on the vehicle outer side communicating with the shoulder main groove on the vehicle outer side, while an other end terminates in the intermediate land portion on the vehicle outer side; an opening end of each of the plurality of lug grooves in the intermediate land portion on the vehicle outer side with respect to the shoulder main groove on the vehicle outer side being present on an extension line of each of the plurality of lug grooves in the shoulder land portion on the vehicle outer side; and a pair of the plurality of lug grooves adjacent in the intermediate land portion on the vehicle outer side being disposed so as not to overlap each other in the tire circumferential direction, characterized in that, the center main groove on the vehicle outer side has a chamfered portion having a zigzag shape; and each of the plurality of lug grooves in the intermediate land portion on the vehicle outer side have a bent portion bent toward one side in the tire circumferential direction; and a plurality of narrow grooves that extend intermittently along the tire circumferential direction without communicating with the bent portion are provided in the intermediate land portion on the vehicle outer side; and these plurality of narrow grooves are disposed substantially parallel to the center main groove on the vehicle outer side. a tread portion extending in a tire circumferential direction and having an annular shape; a pair of sidewall portions disposed on both sides of the tread portion; and a pair of bead portions each disposed on a tire radial direction inner side of the pair of sidewall portions; the tread portion being provided with four main grooves (11, 12, 13, 14) comprising a pair of center main grooves (11, 12) and a pair of shoulder main grooves (13, 14) extending in the tire circumferential direction; a center land portion, a pair of intermediate land portions (22, 23) each located on an outer side of the center land portion, and a pair of shoulder land portions (24, 25) each located on an outer side of the pair of intermediate land portions (22, 23) being defined by the main grooves (11, 12, 13, 14), with a mounting direction of the pneumatic tire being designated with respect to a vehicle; the shoulder land portion on a vehicle outer side and the intermediate land portion on the vehicle outer side each comprising a plurality of lug grooves (31, 32) extending in a tire width direction while being curved; one end of each of the plurality of lug grooves in the shoulder land portion on the vehicle outer side reaching at least a ground contact edge, while an other end terminates in the shoulder land portion on the vehicle outer side; one end of each of the plurality of lug grooves in the intermediate land portion on the vehicle outer side communicating with the shoulder main groove on the vehicle outer side, while an other end terminates in the intermediate land portion on the vehicle outer side; an opening end of each of the plurality of lug grooves in the intermediate land portion on the vehicle outer side with respect to the shoulder main groove on the vehicle outer side being present on an extension line of each of the plurality of lug grooves in the shoulder land portion on the vehicle outer side; and a pair of the plurality of lug grooves adjacent in the intermediate land portion on the vehicle outer side being disposed so as not to overlap each other in the tire circumferential direction, characterized in that, the center main groove on the vehicle outer side has a chamfered portion having a zigzag shape; and each of the plurality of lug grooves in the intermediate land portion on the vehicle outer side have a bent portion bent toward one side in the tire circumferential direction; and a plurality of narrow grooves that extend intermittently along the tire circumferential direction without communicating with the bent portion are provided in the intermediate land portion on the vehicle outer side; and these plurality of narrow grooves are disposed substantially parallel to the center main groove on the vehicle outer side.