A tire vulcanization mold including a sector mold divided into a plurality of pieces along a circumferential direction of a green tire, the sector mold configured to vulcanization mold a tread portion of the green tire into a predetermined shape, and an upper mold and a lower mold disposed on both sides of the green tire so as to sandwich the green tire therebetween in an axial direction of the green tire, the upper mold and lower mold configured to vulcanization mold a side portion of the green tire into a predetermined shape. The sector mold has a weir portion in a vicinity of a fitting portion between the sector mold, and the upper mold and the lower mold.