Abstract: The invention relates to a detergent dispenser for dosing a quantity of solid detergent by dissolving some of the solid detergent in a liquid solvent, in particular in water, to form a detergent solution, and feeding the detergent solution to a detergent outlet. The dispenser comprises a housing (1) with a chassis (2) for wallmounting or the like and a solid detergent reservoir (3). The solid detergent reservoir (3) comprises a detergent compartment (4) holding the solid detergent, a solvent application compartment (7), a liquid solvent dispensing means (9), a solvent supply conduit (10) leading to the solvent dispensing means (9), a detergent solution collector means (11), and a solution conduit (12) connected to the detergent solution collector means (11) to carry away the detergent solution towards a detergent outlet. The invention is particularly convenient, because the solid detergent reservoir (3) is constructed as a modular unit easily separable from the housing (1).