Pneumatic Tire

A pneumatic tire with reduced tire noise, reduced rolling resistance, and improved steering stability performance is provided. An average thickness of an undertread rubber in a center region is greater than that in a shoulder regions, a loss tangent tan δ at 60° C. of the cap tread rubber is higher than that of the undertread rubber, and the ratio CAI/UAI of a cross-sectional area CAI of the cap tread rubber to a cross-sectional area UAI of the undertread rubber is not less than 0.15 and not greater than 0.95 in the center region.