A pneumatic tire includes a lateral groove that includes a groove bottom surface extending in a direction crossing a tire circumferential direction, and a protrusion provided on the groove bottom surface and extending in an extension direction of the groove bottom surface. The protrusion includes a main body, and an end portion provided on at least one side in a longitudinal direction of the main body and shaped such that a height of the protrusion from the groove bottom surface decreases from an inside to an outside in the longitudinal direction of the main body. The end portion includes an upper surface that forms a circular arc recessed inward in a tire radial direction in a cross section crossing a width direction of the protrusion.