PROBLEM TO BE SOLVED: To provide a disposable diaper which facilitates the understanding of a position of a leg expanding and contracting part and the arrangement of the leg expanding and contracting part in a right position.SOLUTION: A disposable diaper 10 is folded in such a manner that an outside end part in a product width direction of the disposable diaper is oriented toward the inside in the product width direction via a folding line positioned inside a leg expanding and contracting part 75 in the product width direction. A marker part 31 in an expanding and contracting direction of the leg expanding and contracting part is provided in a leg arrangement region where the leg expanding and contracting part is disposed. The marker part 31 is provided to be visible from a skin non-contact surface of the disposable diaper.COPYRIGHT: (C)2015,JPO&INPIT【課題】レッグ伸縮部の位置を容易に把握でき、レッグ伸縮部を正しい位置に配置し易い使い捨ておむつを提供する。【解決手段】 使い捨ておむつ10は、レッグ伸縮部75よりも製品幅方向内側に位置する折り目を介して、使い捨ておむつの製品幅方向の外側端部が製品幅方向内側に向かって折り畳まれる。レッグ伸縮部が配置されたレッグ配置領域には、レッグ伸縮部の伸縮方向に沿った目印部31が設けられている。目印部31は、使い捨ておむつの非肌当接面から視認可能に設けられている。【選択図】図1