A vehicle seat is provided. A seat back of the vehicle seat includes: a cover member having a cleavage part; an airbag provided in the seat back; a bracket; and a reinforced cloth that is fixed to the frame member via the bracket, and that reinforces a part of the cover member different from the cleavage part. The airbag is caused to inflate from the cleavage part to protect an occupant's body in a range from an occupant's chest to waist. The reinforced cloth includes a first regulating part that covers a part of the airbag to be inflated toward the occupant's chest and a second regulating part that covers a part of the airbag to be inflated toward the occupant's waist. An attachment portion of the first regulating part and an attachment portion of the second regulating part are attached to the frame member at separate positions.