Provided is a pneumatic tire having wet steering stability performance and dry steering stability performance improved in a well-balanced manner. A dimple group includes a plurality of dimples (100-104) arrayed with spaces in the tire circumferential direction. When a center-to-center minimum dimension between different dimples (100, 102) which are in the same dimple group is denoted as (K), and a center-to-center minimum dimension between dimples (104, 100) which are in different dimple groups is denoted as (L), a ratio L/K is 3.5-10.0, and the inter-center minimum size L is not less than 20 mm and not more than the ground length.