Provided is a disposable worn article for stably forming a pocket structure. A disposable worn article equipped with front and rear waist regions, a crotch region, and an absorbent structure positioned in the crotch region, wherein: the absorbent structure is provided with an absorbent body and side-flaps extending from the absorbent body to the outside on both sides in the horizontal direction； the side-flaps are provided with a distal edge extending in the vertical direction and separated from the absorbent body, a branching line extending in the vertical direction between the absorbent body and the distal edge, a leak-preventing cuff section branching off from the branching line and extending toward the vertical center line, and a leg elastic section extending in the vertical direction between the branching line and the distal edge； the leak-preventing cuff section and the leg elastic section are joined to one another at the branching line； the leak-preventing cuff section has a free edge separated from the branching line, extending in the vertical direction, and having a leak-preventing-cuff elastic member joined thereto； the leg elastic section is divided into three sub-regions of equal widths； each sub-region has a leg-encircling elastic member affixed thereto in the vertical direction； and leg-elastic-section front and rear ends of the leg elastic section are affixed, respectively, to the front and rear waist regions.
