Provided is an absorbent article that can alleviate irritation to the skin near the sacrum. This absorbent article (1) has a center region (S1) that is disposed under the crotch of a wearer a rear side region (S3) that is longer in a fore aft direction (L) than the center region (S1) and an absorbent core (31) that is disposed in at least the rear side region (S3). A hip flap (4) that bulges to the outside in the width direction (W) is provided in the rear side region (S3) a pair of rear side compression portions (84) that compress at least the absorbent core (31) and are provided so as to sandwich a center line (CL) and be spaced apart from each other are formed along the fore aft direction (L) in the rear side region (S3) the maximum width of the hip flap (4) is located further toward the rear than the center of the rear side region (S3) in the fore aft direction (L) the pair of rear side compression portions (84) are located further toward the rear than the position (P1) of the maximum width of the hip flap (4) and the pair of rear side compression portions (84) have a wide section in which the distance in the width direction W expands the further toward the rear side.
