The present invention aims to provide a disposable wearing article improved so as to eliminate a possibility that the front and rear waist regions might be unintentionally disconnected from each other during use of the article.A disposable wearing article (1A) has front and rear waist regions (4, 6), a crotch region (5) extending between these waist regions (4, 6) and a pair of engagement members (11) respectively to inner surfaces of transversely opposite side edge portions (10) of the rear waist region (6). In the article (1A), each of the engagement members (11) has a fixed portion (18) permanently bonded to the associated side portion (10) of the rear waist region (6) and a first free portion (19) extending inward from the fixed portion (18) in a transverse direction of the rear waist region (6) wherein the first free portion(19) is formed on its inner surface with hooks (20) so that the side edge portions (10) of the rear waist region (4) may be releasably engaged with inner or outer surface of the front waist region by means of the engagement members (11).
