| Acronym | Definition |
|---|
| BCN | Beacon |
| BCN | Banco Central de Nicaragua |
| BCN | Blue Care Network |
| BCN | Biblioteca del Congreso Nacional (Chile) |
| BCN | Board Certified in Neurofeedback (medical care) |
| BCN | Broadband Convergence Network |
| BCN | Banque Cantonale Neuchateloise (Neuchatel, Switzerland) |
| BCN | British Commonwealth of Nations |
| BCN | BMDS (Ballistic Missile Defense System) Communications Network |
| BCN | Banco de Crédito Nacional SA (Brazilian bank) |
| BCN | Birmingham Canal Navigation (England, UK) |
| BCN | Banque Centrale Nationale (Spanish: National Central Bank; various locations) |
| BCN | Burda Community Network (marketing; Germany) |
| BCN | Bird Conservation Nepal (Kathmandu, Nepal) |
| BCN | Breast Care Nursing (various organizations) |
| BCN | Broadband Communication Network |
| BCN | Bloque Cacique Nutibara (Colombian paramilitary bloc) |
| BCN | Backward Congestion Notification |
| BCN | Business Consulting Network (various organizations) |
| BCN | Barcelona, Spain - Barcelona (Airport Code) |
| BCN | Backbone Concentrator Node (routers, Nortel) |
| BCN | Biomedical Communications Network (National Library of Medicine) |
| BCN | Baltimore Collegetown Network (Baltimore, MD) |
| BCN | Banque Commerciale du Niger (French) |
| BCN | Bureau de la Capitale-Nationale (French: Office of the National Capital; Canada) |
| BCN | Berkshire County Network (Adams, MA) |
| BCN | Bank Code Number |
| BCN | Belgian Climbing Network |
| BCN | Bureau Control Number |
| BCN | Brevet de Cyclotourisme National (French: National Cycling License; French Federation of Cycling) |
| BCN | Billet Control Number |
| BCN | Budget Customer Number |
| BCN | Base Centrale des Nomenclatures (French: Base Central Classifications; French Ministry of National Education) |
| BCN | Boston Concert Network |
| BCN | Bayonet Collectors Network |
| BCN | Badminton Club Nogentais (French badminton club) |
| BCN | British Church Newspaper (UK) |
| BCN | Badminton Club Narbonnais (French badminton club) |
| BCN | Bank Cards Network |
| BCN | Boarding Control Number |
| BCN | Badminton Club du Neuhof (French badminton club) |
| BCN | Badminton Club de Noisiel (French badminton club) |
| BCN | Binary Cube Network |
| BCN | Badminton Club de Nevers (French badminton club) |
| BCN | Béton à Caractéristiques Normalisées (French: Concrete Standard Characteristics) |