Abstract: A heavy duty pneumatic tire is disclosed, which has a tread pattern formed in a tread divided into a plurality of lands by a plurality of longitudinal grooves extending circumferentially of the tread, among which each of a first land in at least a side edge region of the tread and a second land adjacent thereto has an arrangement of blocks defined by transverse grooves arranged at a substantially equal interval in the circumferential direction of the tread. In this tread pattern, each block of the first land is arranged in zigzag form opposite to two adjoining blocks of the second land, the opposed groove walls of the longitudinal groove defining the first and second lands have a minimum distance corresponding to not more than 3% of the tread width, and the remaining longitudinal groove(s) located in a center of the tread or sandwiching the central land of the tread has a groove width corresponding to 4-10% of the tread width.