PROBLEM TO BE SOLVED: To provide a disposable diaper preventing the legs from being caught thereby when being worn, having underwear-like external appearance and capable of reducing a feeling of resistance of wearing the diaper.SOLUTION: A diaper 1 includes a crotch part 1C, a ventral part 1A, and a dorsal part 1B. The diaper 1 includes: end edges 1At and 1Bt extending in the width direction Y at end areas 1Ae and 1Be in the longitudinal direction of the ventral part 1A and the dorsal part 1B respectively and side edges 1Ct extending in the longitudinal direction X, at side edges 1Cs in the width direction in the crotch part 1C. The end edges 1At and 1Bt or the side edges 1Ct have a repetitive shape formed by repeating geometric repetition units formed of straight lines, curved lines, or a combination of the straight lines and curved lines.COPYRIGHT: (C)2015,JPO&INPIT【課題】装着時に脚が引っ掛かりにくく、また下着様の外観を呈し、おむつを着用することへの抵抗感を低減し得る使い捨ておむつを提供すること。【解決手段】おむつ1は、股下部1Cを備えるとともに、腹側部1A及び背側部1Bを備える。おむつ1は、腹側部1A及び背側部1Bにおける長手方向の端部域1Ae,1Beに、幅方向Yに延びる端縁1At,1Btを有するとともに、股下部1Cにおける幅方向Yの側部域1Csに、長手方向Xに延びる側縁1Ctを有する。端縁1At,1Bt又は側縁1Ctが、直線、曲線、又は直線と曲線との組み合わせによって構成された幾何学的な形状の反復単位が複数繰り返されてなる繰り返し形状を有する。【選択図】図1