Provided is a disposable worn article having a tape tab making it possible to secure the disposable worn article, once worn, with a simple operation. A disposable diaper (1), comprising a chassis (10), a liquid-absorbing structure (40) arranged on the skin-facing side of the chassis (10), and a tape tab (70) attached to the non-skin-facing side of the chassis (10). The tape tab (70) is attached to a rear waist sheet (22) and is constituted of a first region, second region, and third region that mutually overlap and each extend in the longitudinal direction (Y). Provided to the first region is a hook element (74), on a side facing the second region, but the hook element (74) substantially does not hook onto the second region. A first temporary fastener (76) for temporarily fastening a part of the first and second regions, and a second temporary fastener (77) for temporarily fastening a part of the first through third regions are provided to the outside, in the longitudinal direction (Y), of a fastening section to which the hook element is provided.