VEHICLE DOOR

A vehicle door includes a door panel, a corner piece that is disposed at a door waist portion of the door panel and that includes a protrusion, a weather strip that is disposed to extend along an outer peripheral edge of the door panel and that has a hole portion with which the protrusion is engaged, and a door trim that is disposed to cover the corner piece. The protrusion has a hollow structure and includes an outer peripheral side wall, and an opening is provided in a part of the outer peripheral side wall.