The invention discloses a heavy duty pneumatic tire. Both of the center wear and heel-and-toe wear can be improved to high levels. A tread portion 2 is divided into a pair of crown land portions 4A, a pair of middle land portions 4B and a pair of shoulder land portions 4C by center main grooves 3A, middle main grooves 3B, and shoulder main grooves 3C. The crown land portions 4A, the middle land portions 4B and the shoulder land portions 4C are divided into crown blocks 8A, middle blocks 8B and shoulder blocks 8C by crown axial grooves 7A, middle axial grooves 7B and shoulder axial grooves 7C. The crown axial groove 7A, the middle axial groove 7B and the shoulder axial groove 7C are provided with a crown tie bar 16A, a middle tie bar 16B and a shoulder tie bar 16C, respectively. The maximum width Wcr of the crown land portion, the maximum width Wmi of the middle land portion, and the maximum width Wsh of the shoulder land portion are set in the preset range.