The provided is a mold for forming a tire and a tire production method that can reduce the driving force required to drive the segment in the initial stage of releasing a tire from the mold. The mold for forming a tire comprises: a circular tread molding portion divided into a plurality of circumferentially aligned segments; and a tilting mechanism that tilts the segments radially outward when the tread molding portion is opened radially outward, and the tilting mechanism reverts the tilt of the segments after the tread molding portion is opened.

Provided are a mold for forming a tire including a tread molding part which is configured to be opened and closed by moving a plurality of segments in a radial direction, and a tire production method using the same. In the mold, each of the segments includes a holder; a plurality of design surface dividing mold parts disposed in a circumferentially arranged manner on a radially inner side of the holder; and a plate spring member to which the plurality of the design surface are fixed and in which both ends of the plate spring member in a circumferential direction are fixed to the holder, and when the tread molding part is opened, by elastic deformation of the plate spring member, the plurality of the design surface are moved in a direction away from the holder with the plurality of the design surface dividing mold parts being rotated.