The wall-mounted cabinet having a bidet extendable there from is an assembly comprised of a valve adapted to be connected to a water line. The valve is controlled via a control knob. A water hose and nozzle connect to and extend from the valve. The water hose and the nozzle extend from a water cabinet, which is accessible via an access door. The water cabinet is positioned above the valve. A mounting frame extends below the access door, and supports the control knob adjacent to the valve. The assembly is installed into a wall surface or a side of an existing cabinet. The assembly may be positioned adjacent to a toilet or a bathroom sink. The assembly enables the water hose and nozzle to function as a bidet, and in concert with the toilet. The access door encloses the nozzle and water hose when not in use.