Second sound shift

Selective Service System, the United States military conscription program

St. Stephen's Episcopal School, Austin, Texas, a private school in Austin, TX

Saffir-Simpson Hurricane Scale, or Saffir-Simpson Scale, a system for measuring intensity of tropical cyclones

Southern Cross Station (formerly Spencer Street Station), a major railway station in Melbourne, Australia, in the state of Victoria.

Sigue Sigue Sputnik, a pop group

Sigma Sigma Sigma, a U.S. sorority

Sport Searching School, the fictional school from Sport Ranger

Scotopic sensitivity syndrome, or Irlens syndrome, a visual disorder

Sneaky Sound System, an Australian pop/dance group.

Soccer-specific stadium, a sports stadium whose primary (but not only) purpose is to host soccer matches

Subsurface scattering, a mechanism of light transport and effect in 3D computer graphics

Sega Soccer Slam

State Security Service, Nigerian domestic intelligence agency

Southwood Secondary School, a high school in Cambridge, Ontario

Saunders Secondary School, a high school in London, Ontario, Canada

Sick sinus syndrome, an abnormality of heart rhythm

SunSet Swish, a Japanese band

Sea Scout Ship, part of the Sea Scouting program

Subclavian steal syndrome, a medical condition arising from reversed blood flow

Triple-S Management Corporation

Sweden Solar System, the world's largest scale model of the solar system

Strict sense stationarity

See also: SS (disambiguation).

Congregatio Ssmi Sacramenti, the Congregation of the Blessed Sacrament

Cray-3/SSS, a massively parallel supercomputer project

Streetsville Secondary School, a high school in Mississauga, Ontario, Canada

Sutton's Sign Symbol Sequence, now the International Movement Writing Alphabet, an ordered set of symbols used to record movement

SSS-PC, a computer operating system (kernel)

Solid State Survivor, an album by Yellow Magic Orchestra

SATS Security Services, provider of security services for aviation-related activities at the Singapore Changi Airport

"SSS" is also sometimes used to represent hissing sounds.

State space search, an artificial intelligence algorithm

Silent sinus syndrome, a collapse of the maxillary sinus and orbital floor associated with negative sinus pressures.

Short Sharp Shock, a crossover thrash band from Liverpool, UK.

Simplified Spelling Society, an organization which promotes English spelling reform

Sudbury Secondary School, a high school in Greater Sudbury, Ontario, Canada

Siding Spring Survey, a Near-Earth Object search program based Siding Spring Observatory, N.S.W., Australia

Joycard Sanusui SSS, a controller for the Nintendo Entertainment System

Satellite Syndicated Systems, a company that provided distribution of data via communications satellite

SSS-islands, part of the Netherlands Antilles

Senior Staff Sergeant, a rank in the Singapore Police Force