FSO may refer to:

Government

Federal Protective Service (Russia) The Federal Protective Service, or the Federal Guard Service (russian: Федеральная служба охраны, ФСО, Federalnaya sluzhba okhrany, FSO) of the Russian Federation, official name in English Federal Guard Service of the Ru ...

(Russian: ), responsible for the security of Russian state officials *

Federal Statistical Office (Switzerland) The Federal Statistical Office (FSO) is a Federal agency of the Swiss Confederation. It is the statistics office of Switzerland, situated in Neuchâtel and attached to the Federal Department of Home Affairs. The Federal Statistical Office i ...

Financial Secretary's Office The Financial Secretary () is the title held by the Hong Kong government minister who is responsible for all economic and financial matters (“Department of Finance” per Article 60 of the Basic Law). The position is among the three most sen ...

, of the Government of Hong Kong *

Foreign Service Officer A Foreign Service Officer (FSO) is a commissioned member of the United States Foreign Service. Foreign Service Officers formulate and implement the foreign policy of the United States. FSOs spend most of their careers overseas as members of U ...

, of the United States Foreign Service * Forest Section Officer, in India

Music

Fairfax Symphony Orchestra The Fairfax Symphony Orchestra is a regional orchestra based in Fairfax, Virginia, founded in 1957. Currently, the Fairfax Symphony plays at the George Mason University Center for the Arts Concert Hall. Notable members from past and present incl ...

, in Virginia, United States * Frankston Symphony Orchestra, in Victoria, Australia * Fulham Symphony Orchestra, in London * " F.S.O.", the first single from the Regurgitator album ''Tu-Plang'' * Film Symphony Orchestra, Czech classical orchestra

Transport

* ''

Fabryka Samochodów Osobowych Fabryka Samochodów Osobowych ( en, Passenger Car Factory), commonly known as FSO, is a Polish automobile parts manufacturer, and formerly an automobile producer of historic significance, located in Warsaw. In 2011 the factory ceased production a ...

'', a Polish automotive company * Franklin County State Airport, in Vermont, United States * Subiaco railway station, in Western Australia

Other uses

* Fire Support Officer * Flash shared object *

Floating storage and offloading A floating production storage and offloading (FPSO) unit is a floating vessel used by the offshore oil and gas industry for the production and processing of hydrocarbons, and for the storage of oil. An FPSO vessel is designed to receive h ...

Free-space optical communication Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking. "Free space" means air, outer space, vacuum, or ...

* Flag Service Organization {{disambiguation