Patented is a disposable diaper having a neat appearance. The diaper includes: a liquid-permeable top sheet which covers a use surface side; a leakage preventing sheet which covers a non-use surface side; an absorbent body interposed between the top sheet and the leakage preventing sheet; and an external sheet 120 disposed on an outer surface side of the leakage preventing sheet, wherein three-dimensional gathers BS are formed along leg surrounding portions and leg cut-out portions of the external sheet which form leg openings are located in a portion of the minimum width of a crotch portion, at a position nearer to a central side than places outward by 5 mm from rising start points of the three-dimensional gathers BS.