SSN

SSN may refer to:

  • Scoil an Spioraid Naoimh, a primary school in Cork City Ireland
  • Secure Service Network, a network behind a firewall or IPS containing systems which can be accessed from both the internal and external networks, but cannot reach the internal network
  • Streaming Sports Network, an online sports network dedicated to university sports, based in Canada
  • Servizio Sanitario Nazionale, Italy's national health service
  • Setanta Sports News, a former 24-hour sports news network in the United Kingdom
  • SIM Serial Number, used to identify a mobile phone's SIM card
  • Site Specific Nucleotide, in molecular biology/genetics
  • Simultaneous Switching Noise, In Digital Electronics: an important aspect of power and signal integrity
  • Sky Sports News, a 24-hour sports news network in the United Kingdom
  • Social Security number, an identification number used by the U.S. Social Security Administration
  • Socialist Solidarity Network, a Trotskyist group in the UK
  • Space Surveillance Network, a multinational cooperative effort to monitor space activity and track earth-orbiting objects and satellites.
  • Species Survival Network: a coalition of conservation organizations committed to the enforcement and enhancement of CITES, the Convention on International Trade in Endangered Species
  • SSN (hull classification symbol), the United States Navy's hull classification symbol for a fast attack submarine, one that is propelled by nuclear energy
  • Tom Clancy's SSN, a 1996 game by Clancy Interactive Entertainment describing the operations of a U.S. Navy attack submarine
  • SSN (novel), a 1996 novel by Tom Clancy based upon the game by the same name
  • SSN College of Engineering, an engineering institution located in the suburbs of Chennai, Tamil Nadu, India
  • Subsystem number, used in the Signaling Connection and Control Part of Signaling System #7 routing
  • Surgical Segment Navigator, a system for computer-assisted surgery
  • The IATA code for Seoul Airbase
  • Servicio Sismológico Nacional, the Mexican National Seismological Service, UNAM, Mexico
  • Severely Sub-normal, a former British educational classification for people with serious learning difficulties
  • South Sudan