A heavy load tire comprising a tread portion , wherein the tread portion is partitioned into a plurality of portions by a widthwise groove extending in a tire widthwise direction (W), and at least one of a circumferential groove extending in a tire circumferential direction (U) and a tread end (TE) that is an end portion of the tread portion , the circumferential groove and a first inner widthwise groove , which is arrayed in a tire circumferential direction (U) and included in the widthwise groove , are formed on at least one side of a tire equator line (CL), the first inner widthwise groove opens to the circumferential groove , extends inward in the tire widthwise direction (W), and reaches the tire equator line (CL), the first inner widthwise groove includes: an inner widthwise linear groove extending linearly along a tire widthwise direction (W) from the circumferential groove toward an inner side in the tire widthwise direction (W); and a curved groove , which is continuous with an inner end in the tire widthwise direction (W) of the inner widthwise linear groove , extends inward in the tire widthwise direction (W) and in a tire normal rotation direction, and reaches the tire equator line (CL), and an angle (θ1) formed by the curved groove and the tire widthwise direction (W) becomes smaller toward the tire equator line (CL), wherein a first outer widthwise groove , which is included in the widthwise groove , is wider than the first inner widthwise groove , opens to the circumferential groove at a position opposed to the first inner widthwise groove , and extends outward in the tire widthwise direction (W), is arrayed in the tire circumferential direction (U), and wherein a second outer widthwise groove , which is narrower than the first outer widthwise groove , opens to the circumferential groove , and extends outward in the tire widthwise direction (W), is arranged between the first outer widthwise grooves adjacent to each other in the tire circumferential direction (U). an inner widthwise linear groove extending linearly along a tire widthwise direction (W) from the circumferential groove toward an inner side in the tire widthwise direction (W); and a curved groove , which is continuous with an inner end in the tire widthwise direction (W) of the inner widthwise linear groove , extends inward in the tire widthwise direction (W) and in a tire normal rotation direction, and reaches the tire equator line (CL), and an angle (θ1) formed by the curved groove and the tire widthwise direction (W) becomes smaller toward the tire equator line (CL), wherein a first outer widthwise groove , which is included in the widthwise groove , is wider than the first inner widthwise groove , opens to the circumferential groove at a position opposed to the first inner widthwise groove , and extends outward in the tire widthwise direction (W), is arrayed in the tire circumferential direction (U), and wherein a second outer widthwise groove , which is narrower than the first outer widthwise groove , opens to the circumferential groove , and extends outward in the tire widthwise direction (W), is arranged between the first outer widthwise grooves adjacent to each other in the tire circumferential direction (U). <EOS>