A pneumatic tire includes a tread portion including grooves formed into a predetermined pattern design, a sidewall portion including a surface on which a maximum tire width position is located, and a serration portion including a plurality of ridges arranged at intervals in a tire circumferential direction on the surface of the sidewall portion. The serration portion includes first ridge groups and second ridge groups. The first ridge groups each include a plurality of first ridges arranged adjacent to each other in the tire circumferential direction and including end portions of which the distances from the rotation axis gradually change. The second ridge groups each include a plurality of second ridges arranged adjacent to each other in the tire circumferential direction and including end portions of which the distances from the rotation axis gradually change.