Birn or variants may refer to: BIRN Biomedical Informatics Research Network (BIRN), a geographically distributed virtual community of shared resources relating to diagnosis and treatment of disease Balkan Investigative Reporting Network Berklee College of Music Internet Radio Network Birn or Birns Alex Birns (born 1907–1975), Jewish American mobster Jack Birns (born 1919-2008), American photographer Jerry Birn (born 1923-2009), American television writer Laura Birn (born 1981), Finnish actress Laura Bryan Birn (born 1965), American actress Other uses Dál Birn Lóegaire Birn Búadach, Óengus Osrithe's son Nem Moccu Birn (died 654), Irish saint