Abstract: A case (1) for handcuffs (10) is of the type having a hollow body (2) with a top opening for housing handcuffs (10) and a flap (3) for closing the body (2), the flap (3) being pressed in closed position, against the so-called front side (2A) of the body (2). The case is designed so that the flap (3) is provided, on its inner surface, with a key-ring (6) housing (5) with a reel, the housing (5), when the flap (3) is closed, projecting inside the body (2) through an opening (4), preferably an indentation, provided in the front surface (2A) of the body (2) so as to enable in particular the reel key-ring (6) housing (5) to be positioned in the free space delimited by the handcuff bracelets (10). The device is useful for handcuff cases.