The present invention relates to a tabletop attached furniture (10, 10A, 10B, 10C) including a plurality of legs (20) which stand on a floor surface (F) and a tabletop (30, 30A, 30B, 30C) supported on the plurality of legs (20), wherein each of the legs (20) is formed so that a width dimension (W1) when viewed from a first direction (X) along an upper surface of the tabletop (30, 30A, 30B, 30C) gradually increases upward from below and a width dimension (W2) when viewed from a second direction (Y) orthogonal to the first direction (X) within a plane following the upper surface of the tabletop gradually increases downward from above.