GSO

GSO can refer to:

Military

• General Staff Officer, a former British Army rank

Companies and organizations

• GSO Capital Partners, credit-oriented alternative asset manager owned by The Blackstone Group
• Gamer Symphony Orchestra at the University of Maryland, student-run symphony orchestra and chorus at the University of Maryland, College Park
• German Scholars Organization, German-American organisation of scientists
• Gothenburg Symphony Orchestra, Swedish symphony orchestra
• Graduate School of Oceanography, common acronym for the University of Rhode Island's Graduate School of Oceanography
• GCC Standardization Organization Regional standardization body established by Cooperation Council for the Arab States of the Gulf.

Science and mathematics

• GSO projection, named after Ferdinando Gliozzi, Joël Scherk and David A. Olive
• Gadolinium oxyorthosilicate, a type of inorganic crystal used as a scintillator in nuclear medicine imaging
• Geostationary Satellite Orbit, also called Geosynchronous orbit
• Generic segmentation offload, a generalization of TCP segmentation offload in the Linux kernel
• Gram-Schmidt orthogonalization, a method for constructing orthogonal set of vectors

Miscellaneous

• The IATA airport code for Piedmont Triad International Airport near Greensboro, North Carolina, United States
• GSO Stadium former stadium in Limassol, Cyprus