SFG may refer to:
Military
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Special Forces Group (Belgium)
The Special Forces Group is the special forces unit in the Land Component of the Belgian Armed Forces.
Members of the Special Forces Group are selected from all the components of the Belgian Armed Forces. Candidates must have at least three ye ...
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Special Forces Group (Japan)
The is the Japan Ground Self-Defense Force's special forces unit established on March 27, 2004 by the then Defense Agency to counter terrorist activities and deter guerrilla-style attacks on Japanese soil and to conduct military operations agai ...
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Special Forces (United States Army)#Special Forces groups
Science and Technology
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Sum-frequency generation
Sum-frequency generation (SFG) is a second order nonlinear optical process based on the annihilation of two input photons at angular frequencies \omega_1 and \omega_2 while, simultaneously, one photon at frequency \omega_3 is generated. As with a ...
in optical physics
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Signal-flow graph
A signal-flow graph or signal-flowgraph (SFG), invented by Claude Shannon, but often called a Mason graph after Samuel Jefferson Mason who coined the term, is a specialized Flow graph (mathematics), flow graph, a directed graph in which nodes repr ...
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Superior frontal gyrus
In neuroanatomy, the superior frontal gyrus (SFG, also marginal gyrus) is a gyrus – a ridge on the brain's cerebral cortex – which makes up about one third of the frontal lobe. It is bounded laterally by the superior frontal sulcus.
The su ...
, in the human brain
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Systemic functional grammar
Systemic functional grammar (SFG) is a form of grammatical description originated by Michael Halliday. It is part of a social semiotic approach to language called ''systemic functional linguistics''. In these two terms, ''systemic'' refers to ...
Other
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San Francisco Giants
The San Francisco Giants are an American professional baseball team based in San Francisco, California. The Giants compete in Major League Baseball (MLB) as a member club of the National League (NL) West division. Founded in 1883 as the New Y ...
, a Major League Baseball team
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L'Espérance Airport, IATA airport code
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