Dirr may refer to:
Michael Dirr, American horticulturist Dirr's Trees and Shrubs for Warm Climates, sometimes abbreviated Dirr or Dirr's; see List of horticulture and gardening books/publications Otillie Dirr, a founder of the Sisters of St. Francis of Assisi dirr, an abbreviation for dwarf irregular galaxy
See also Dir (disambiguation) Durr (disambiguation) Duerr (disambiguation)