PNEUMATIC TIRE

Each sipe wall surface of a pair of the sipe wall surfaces of a sipe provided in a tread portion of a pneumatic tire includes, along a sipe depth direction, at least two ridge portions and at least one valley portion bending like waves, at every different position in a sipe extension direction. In a case where the sipe is viewed along the sipe depth direction, a recess depth of the valley portion from the ridge portion on one wall surface of the sipe wall surfaces varies depending on a position in the extension direction, the valley portion extends from a position at which the recess depth is maximized toward a position at which the recess depth is minimized, and the recess depth decreases as the valley portion extends from the side of the maximum-depth valley portion toward the maximum ridge portion. The sipe is provided in at least one of a first half-tread region on a first side and a second half-tread region on a second side in a tire width direction.