There is provided a vehicle seat that includes: a waist movement suppressing member that is disposed at a seat front side and a seat upper side of a seat cushion, and that extends in a seat width direction; movable members that support both end portions of the waist movement suppressing member movably in a seat vertical direction; urging members that urge the movable members toward a seat upper side; raising mechanisms that, at a time of sudden braking or at a time a collision is predicted, move the waist movement suppressing member toward the seat upper side; and stoppers that limit movement, toward a seat lower side, of the waist movement suppressing member that has been moved toward the seat upper side by the raising mechanisms.