The suppository applicator comprises a hollow tubular body (1) having at the front end a rounded mouth (2) and at the rear end thereof fixed support wings (3), there being coupled to this second end a pushing element (4) that is movable longitudinally Inside tubular body (1). The applicator comprises a movable end stop (5) assembled around tubular body (1). Tubular body (1) has a graded scale (11) arranged longitudinally.