SDN

SDN can stand for:


 * S4C Digital Networks, UK TV company
 * SAP Developer Network
 * Sandane Airport, Anda, Norway
 * Scottish Daily News, a newspaper published in 1975
 * Scottish Digital Network, proposed in 2011
 * SDN List, Specially Designated Nationals and Blocked Persons List
 * Sebacoyldinalbuphine
 * Sexually dimorphic nucleus, a cluster of cells in the brain
 * Sholavandan railway station, Madurai, Tamil Nadu, India, station code
 * Société des Nations, French for League of Nations
 * Software-defined networking, an approach to computer networking
 * Specially Designated Nationals with whom US persons may not do business
 * St Denys railway station, station code
 * Student Doctor Network in North America
 * Sydenham railway station, Sydney, station code
 * Sudan, ISO 3166-1 alpha-3 code