A pneumatic tire includes a tread portion provided with a circumferentially and continuously extending zigzag shoulder main groove (3) located adjacent to a tread edge, a shoulder lateral groove (7) extending axially outwardly from the shoulder main groove and a central lateral groove (14, 15, 16) extending axially inwardly from the shoulder main groove. The shoulder main groove includes an inner corner portion protruding axially inwardly. The central lateral groove includes a first groove portion (14), a second groove portion (15) and a confluence portion (16) at which the first groove portion and the second groove portion meet. The confluence portion of the central lateral groove is communicated with the inner corner portion of the shoulder main groove. The shoulder lateral groove is located so that an extended portion in which the shoulder lateral groove is extended axially inwardly overlaps with the confluence portion at least partially.