A tire mold used for producing a tire including a tread having a tread surface that comes into contact with a road surface, at least two circumferential grooves having a groove width of not less than 9 mm being formed on the tread so as to extend in a circumferential direction, thereby forming at least three land portions in the tread , the tread surface including the at least two circumferential grooves and at least three land surfaces that are outer surfaces of the at least three land portions , the tire mold comprising: a tread-forming surface for shaping the tread surface , wherein the tread-forming surface includes at least two projections for forming the at least two circumferential grooves , and at least three land surface-forming portions for forming the at least three land surfaces , characterized in that a contour of a land surface-forming portion located between two projections among the at least three land surface-forming portions is represented by a single circular arc that is convex outward, wherein, of the two projections , one projection is a wide projection having a larger width than the other projection, and the other projection is a narrow projection having a smaller width than the one projection, and a wide-side drop distance MDW that is a distance from a reference surface (FBL) of the tread-forming surface to an end (Pfw) on the wide projection side of the land surface-forming portion is longer than a narrow-side drop distance MDN that is a distance from the reference surface (FBL) of the tread-forming surface to an end (Pfn) on the narrow projection side of the land surface-forming portion , wherein the reference surface (FBL) of the tread-forming surface is defined as a surface that has a contour represented by at least one circular arc and that is tangent to the at least three land surface-forming portions . a tread-forming surface for shaping the tread surface , wherein the tread-forming surface includes at least two projections for forming the at least two circumferential grooves , and at least three land surface-forming portions for forming the at least three land surfaces , characterized in that a contour of a land surface-forming portion located between two projections among the at least three land surface-forming portions is represented by a single circular arc that is convex outward, wherein, of the two projections , one projection is a wide projection having a larger width than the other projection, and the other projection is a narrow projection having a smaller width than the one projection, and a wide-side drop distance MDW that is a distance from a reference surface (FBL) of the tread-forming surface to an end (Pfw) on the wide projection side of the land surface-forming portion is longer than a narrow-side drop distance MDN that is a distance from the reference surface (FBL) of the tread-forming surface to an end (Pfn) on the narrow projection side of the land surface-forming portion , wherein the reference surface (FBL) of the tread-forming surface is defined as a surface that has a contour represented by at least one circular arc and that is tangent to the at least three land surface-forming portions . <EOS>