An absorbent article (1) includes: a front waist portion (30) extending along the lateral direction； a back waist portion (20) extending along the lateral direction； and a crotch portion (10) provided between the front waist portion (30) and the back waist portion (20). A lateral end portion of the back waist portion (20) on a one side and a lateral end portion of the front waist portion (30) on the one side are joined by a first joining portion (1b). The back waist portion (20) has a fastening portion (41) provided on another side in the lateral direction, and the fastening portion (41) is capable of being fastened to the front waist portion (30) when putting on the absorbent article (1). The front waist portion (30) has a target region (34) to which the fastening portion (41) is to be fastened, and a lateral end of the target region (34) on the one side is located on the one side relative to a lateral central position of the crotch portion (10).
