Fluid dispensing device comprising a body (10), a reservoir (20), a dispensing head (100) incorporating a dispensing orifice (5), a dispensing member (30), such as a pump or a valve, mounted on said reservoir (20) by an attachment ring (60), said dispensing member (30) having a dispenser body (31) and a movable member (35) axially displaced in said body dispensing member during actuation of said dispensing member (30), said device further comprising a lateral actuating system (40) integral with said body (10), comprising an actuating element (41) cooperating with said fixing ring (60), said actuating element (41) being movable, substantially transversely to the direction of movement of said movable member (35), between a rest position, in which said dispensing member (30) is not actuated, and an actuating positioning, da wherein said dispensing member (30) is actuated, said fixing ring (60) having an upper radial flange (61) extending radially outwardly, said actuating member (41) having at least one radial projection (412) having an upper edge (413) engaging a lower edge of said radial flange (61) upon actuation.Dispositif de distribution de produit fluide, comportant un corps (10), un réservoir (20), une tête de distribution (100) incorporant un orifice de distribution (5), un organe de distribution (30), tel qu'une pompe ou une valve, monté sur ledit réservoir (20) par une bague de fixation (60), ledit organe de distribution (30) comportant un corps d'organe de distribution (31) et un organe mobile (35) déplacé axialement dans ledit corps d'organe de distribution lors de l'actionnement dudit organe de distribution (30), ledit dispositif comportant en outre un système d'actionnement latéral (40) solidaire dudit corps (10), comportant un élément d'actionnement (41) coopérant avec ladite bague de fixation (60), ledit élément d'actionnement (41) étant mobile, sensiblement transversalement à la direction de déplacement dudit organe mobile (35), entre une position de r