Golf ball 2 has numerous dimples 8 formed on its surface. The dimple 8 has a first side wall face 14, a second side wall face 16 that is positioned to the bottom side of this first side wall face 14, and a bottom face 18 that is positioned to the bottom side of this second side wall face 16. Curvature radius R1 of the first side wall face 14 is equal to or greater than a virtual curvature radius Rx. Curvature radius R2 of the second side wall face 16 is smaller than the virtual curvature radius Rx. Curvature radius R3 of the bottom face 18 is equal to or greater than the virtual curvature radius Rx. Depth d1 of the first side wall face 14 is 0.10 times or greater and 0.50 times or less of the depth d of the dimple 8. Maximum diameter D2 of the second side wall face 16 is 0.60 times or greater and 0.95 times or less of the diameter D1 of the dimple 8.