A fluid dispenser comprising: a flexible pouch (1) that comprises two flexible sheets (11, 12) that define between them a fluid reservoir (10) and an opening (14); and a stopper-and-dispenser member (2) that is mounted in stationary, permanent, and leaktight manner in the opening (14) of the pouch (1), the stopper member (2) including a body (3) that defines a dispenser orifice (34) and two sealing zones (31c, 31d), respectively for the two flexible sheets (11, 12) of the pouch (1); the dispenser being characterized in that the stopper-and-dispenser member (2) further includes a closure lid (4) for closing the dispenser orifice (34), the lid (4) being hinged (43) on the body (3) in such a manner as to pivot between a closed position and an open position.