Abstract: A Lawn Sprinkler Grass Guard is disclosed. Also disclosed is a guard that attachs to a conventional sprinkler to prevent grass from growing too closely to the sprinkler. The guard is further designed such that it is easily attached and detached from sprinklers. The guard also includes an inner sleeve having a bore for accepting a sprinkler therethrough. The guard has a sloped top to allow for ease of clamp installation. Finally, the guard is available in full-circle, half-circle, and quarter-circle versions.