The present invention pertains to a disposable diaper that fits the body very well. A pair of waist bands (17) of a disposable diaper (10) are joined to a diaper body (16) through joining lines (18A), (18B) which approach a vertical center line P from the sides of the leg openings toward the side of a waist opening in front and rear waist regions (11), (12). Intersecting angles (θ1), (θ2) formed between imaginary lines (62), (64) perpendicular to the waist opening and the joining lines (18A), (18B) at intersecting points of the waist opening and the joining lines (18A), (18B) are different from each other in the front waist region (11) and in the rear waist region (12).
