The purpose of the present disclosure is to provide a disposable diaper having, when worn, a shape conforming to the three-dimensional body shape of a wearer. The diaper according to the present disclosure has the following structure. The disposable diaper (1) comprises a liquid permeable layer (2), a liquid impermeable layer (3), and a predetermined absorbent layer (4), is divided into a front waist region (FW), a rear waist region (RW), and a front crotch region (FC) and a rear crotch region (RC) therebetween, and is characterized in that: in the front crotch region (FC) of the absorbent layer (4), the disposable diaper (1) has a first bending guide line (6) formed between a longitudinal axis line (LA) and one side edge (5a) in the front crotch region (FC) of the absorbent layer (4) and extending in the direction of the longitudinal axis line (LA), and a second bending guide line (7) formed between the longitudinal axis line (LA) and the other side edge (5b) and extending in the direction of the longitudinal axis line (LA)； each of the first bending guide line (6) and the second bending guide line (7) includes compressed parts, grooves, or slits on at least the absorbent layer (4)； and the disposable diaper (1) has compressed parts formed by compressing the absorbent layer (4) in a center region (15) between the first bending guide line (6) and the second bending guide line (7).
