A pneumatic tire includes a first projection formed on a buttress portion, and projecting toward the outside in a tire width direction. The first projection includes a projection body projecting outwardly in the tire width direction from the buttress portion, a first side portion adjacent to the projection body in a tire circumferential direction, and a second side portion adjacent to the first side portion in the tire circumferential direction. The projection body has a main surface extending along the surface of the buttress portion. The first side portion has a first stepped surface positioned away from the main surface toward the inside in the tire width direction by a first distance. The second side portion has a second stepped surface positioned away from the main surface toward the inside in the tire width direction by a second distance which differs from the first distance.