Provided are an absorbent article having an elastic film stretchable region in which a stretch rate changes depending on the part, and a method of manufacturing the same. The above problem is solved when a stretchable region (80) being stretchable at least in a width direction is included in a lower-torso region (T) having a waist portion (23) of an outer body (20) of a front body (F) and an outer body (20) of a back body (B), and in the stretchable region (80), in a state in which an elastic film (30) is stretched in a stretching and contracting direction at a stretch rate continuously increasing from a crotch side toward a waist opening side, a first sheet layer (20A) and a second sheet layer (20B) are joined.
