Abstract: A dispenser (T) of rat-poison bait comprising a housing that contains a rat-poison bait (E), the housing being formed from a sheet (F) which is die-cut, folded and glued or heat-sealed at one or more points (Qi), the sheet (F) making up, on its own or in conjunction with other sheets or other heat-formed elements, walls (T21, T22, T11, T12), a bottom (T4) and a top (T3) and one or more separating internal walls (S1, S2), and wherein on one or more of the walls (T11, T12, T21, T22) and/or separating internal walls (S1, S2) at least one hole or opening (A1, A2, P1, P2) is provided for the passage of mice or rats or small rodents in general.