A tilt-down vehicle seat including: a base member on a vehicle floor; a seatback connected to the base member via a reclining mechanism; a seat cushion that moves downward as the seatback is tilted downward; a front link pivotally fitted at a lower portion to the base member and at an upper portion to a front portion of the seat cushion; a guide mechanism that slidably supports a rear portion of the seat cushion and guides the rear portion in such a manner that the rear portion slides relative to the base member in the fore-and-aft and up-and-down directions; a seatback-connected member that moves in accordance with a movement of the seatback; and an interlocking link pivotally connected at a front portion to the front link and at a rear portion to the seatback-connected member, which causes the seat cushion to move in accordance with the movement of the seatback.