A fluid dispenser comprising: at least one fluid reservoir (1) defining a substantially rigid neck (14); a substantially rigid casing (2) containing the reservoir (1); and a dispenser member (5) engaged in the neck (14) of said at least one reservoir (1) in order to withdraw the fluid; the fluid dispenser being characterized in that it further comprises a holding element (3) engaged both with the neck (14) of the reservoir (1) and with the rigid casing (2) in such a manner as to hold the reservoir in place in the rigid casing.