The recessed can lampshade accessory is able to be configured for use with an existing recessed can that is mounted on a ceiling. The recessed can lampshade accessory includes a plurality of arm supports that each includes an attachment clip on a distal end. The attachment clip enables the respective support arm to clip onto the recessed can fixture, and from which the arm support extends downwardly in order for a lamp shade to attach thereon. The lamp shade is suspended below the recessed can in order to diffuse light directed therefrom, and which also resembles a lamp shade.