BGN or bgn may refer to:

  • Biglycan, a protein coded by the BGN gene
  • The ISO 4217 code of Bulgarian lev, the former currency of Bulgaria
  • The Western Balochi language (ISO code: bgn)
  • The United States Board on Geographic Names
  • Belaya Gora Airport (IATA: BGN), Yakutia, Russia
  • Blessed George Napier Roman Catholic School, Banbury, UK
  • Bridgend railway station (National Rail station code: BGN), a main line station serving the town of Bridgend, south Wales
  • 802.11b/g/n, a designation indicating device support for certain wireless computer networking standards
  • Busch Grand National, former name for the NASCAR Xfinity Series
  • National Nutrition Agency (), an Indonesian government agency