An absorbent article (1) has an absorber (12). The absorbent article (1) is provided with: grooved parts (20) provided in the absorber (12), the grooved parts (20) extending in a longitudinal direction in a crotch part (1B) disposed in at least the crotch of a wearer; elastic parts (41) provided extending in the longitudinal direction at positions superposed on the absorber (12) in a thickness direction in at least the crotch part (1B); a first absorber part (121) of the absorber (12) to which the grooved parts (20) are provided; and a second absorber part (122) of the absorber (12), the second absorber part (122) having a lesser weight than does the first absorber part (121) and including regions (R) of virtual extension of the grooved parts (20) along the direction in which the grooved parts (20) extend.