Abstract: A recreational vehicle toilet tank cleaning assembly includes a tube that has a terminal end. A nozzle is removably coupled to the terminal end. The nozzle has a first end, a second end and a perimeter wall extending between the first and second ends. The first end is open and is threadably coupled to the terminal end of the tube. The nozzle has a plurality of apertures therein. The apertures include a primary aperture extending through the second end that is aligned with a longitudinal axis of the nozzle. The perimeter wall has a break therein and the nozzle includes a first portion rotatably coupled to a second portion. The second portion includes the plurality of apertures. The tube is fluidly couplable to a water source and the nozzle placed in a recreational vehicle toilet tank to eject water outwardly of the plurality of apertures and clean the tank.