GSO

GSO may refer to:

Organizations

 * GCC Standardization Organization, of the Gulf Cooperation Council
 * General Statistics Office of Vietnam
 * Golden State Overnight, former name of American logistics company GLS-US
 * Government Shipping Office, of the Government of Pakistan
 * Grassroots Support Organization
 * GSO Capital Partners, an American asset management firm

Orchestras

 * Gamer Symphony Orchestra at the University of Maryland, US
 * Gothenburg Symphony Orchestra, Sweden
 * Greenville Symphony Orchestra, South Carolina, US
 * Guangzhou Symphony Orchestra, China

Science and mathematics

 * Gadolinium oxyorthosilicate, a type of scintillating inorganic crystal
 * Generic segmentation offload, in computer networking
 * Geosynchronous orbit, an orbit around Earth of a satellite
 * Gram-Schmidt orthogonalization, in mathematics
 * GSO projection, in superstring theory

Other uses

 * General Staff Officer
 * GSO Stadium, a former stadium in Limassol, Cyprus
 * Piedmont Triad International Airport (IATA and FAA LID codes), North Carolina, US
 * Southwest Gbaya language (ISO 639-3 code)