A new cultivar of Dianthus plant named ‘WP11 TYR04’ which is characterized by a compact mounding habit, blue-green foliage, fragrant single flowers that are strongly patterned cherry red with white-pink markings and a deep cherry eye, and ruffled petal edges. In combination, these characteristics set ‘WP11 TYR04’ apart from all other existing varieties of Dianthus known to the inventor.