A pneumatic tire comprising: a tread having an outer surface that forms a tread surface; sidewalls extending in a radially inward direction of the tire, from both ends, in a tire axial direction, of the tread; a carcass disposed along and inward of the tread and the sidewalls; and a belt provided inward of the tread in a tire radial direction so as to be layered over the carcass, characterized in that on a cross-section taken along a plane including an axis of the tire, a distribution of a thickness Tg(y) of the tread in a region extending in an axially outward direction of the tire from a tread crown center corresponding to an equator position, is represented by the following equation: Tg y = A − a × Ct y, in equation, A represents a thickness of the tread at the tread crown center, wherein the thickness of the tread represents a dimension from the tread surface to a top surface of the carcass in the tire radial direction, Ct(y) represents a distribution of a displacement of the tread surface in the radially inward direction of the tire, in a region from the tread crown center to an end portion of the belt, wherein y represents a position in the tire axial direction, and a represents a coefficient selected from a range from greater than or equal to 0.10 to not greater than 0.35; and on the cross-section of the tire, a distribution of a displacement Cc(y) of the carcass in the radially inward direction of the tire, in a region extending in the axially outward direction of the tire from a position corresponding to the tread crown center, is represented by the following equation: Cc y = 1 − a × Ct y. a tread having an outer surface that forms a tread surface; sidewalls extending in a radially inward direction of the tire, from both ends, in a tire axial direction, of the tread; a carcass disposed along and inward of the tread and the sidewalls; and a belt provided inward of the tread in a tire radial direction so as to be layered over the carcass, characterized in that on a cross-section taken along a plane including an axis of the tire, a distribution of a thickness Tg(y) of the tread in a region extending in an axially outward direction of the tire from a tread crown center corresponding to an equator position, is represented by the following equation: Tg y = A − a × Ct y, in equation, A represents a thickness of the tread at the tread crown center, wherein the thickness of the tread represents a dimension from the tread surface to a top surface of the carcass in the tire radial direction, Ct(y) represents a distribution of a displacement of the tread surface in the radially inward direction of the tire, in a region from the tread crown center to an end portion of the belt, wherein y represents a position in the tire axial direction, and a represents a coefficient selected from a range from greater than or equal to 0.10 to not greater than 0.35; and A represents a thickness of the tread at the tread crown center, wherein the thickness of the tread represents a dimension from the tread surface to a top surface of the carcass in the tire radial direction, Ct(y) represents a distribution of a displacement of the tread surface in the radially inward direction of the tire, in a region from the tread crown center to an end portion of the belt, wherein y represents a position in the tire axial direction, and a represents a coefficient selected from a range from greater than or equal to 0.10 to not greater than 0.35; and on the cross-section of the tire, a distribution of a displacement Cc(y) of the carcass in the radially inward direction of the tire, in a region extending in the axially outward direction of the tire from a position corresponding to the tread crown center, is represented by the following equation: Cc y = 1 − a × Ct y.