SGN
SGN or sgn is an abbreviation for:
- Airport Tan Son Nhat ( Tan Son Nhat International Airport ), Vietnam's largest international airport, is located in Ho Chi Minh City ( Thành Pho Hồ Chí Minh ) in southern Vietnam after the IATA code
- Sign Language as an ISO 639-2 code
- Swiss Society of Nuclear Medicine
- Senckenberg Nature Research Society ( to November 2008: Senckenberg Nature Research Society - SNG ), a nonprofit organization, based in Frankfurt am Main
- Signum function, a mathematical function
- Disambiguation
- Abbreviation