SC
- sc — (s) Sardinian language (ISO 639-1 code)
- Sc — (s) Scandium
- SC
- (s) Cruiser Submarine (US Navy hull classification) c Saint Kitts and Nevis (FIPS 10-4 country code; from Saint Christopher)
- Seychelles (ISO 3166 digram)
- South Carolina (postal symbol)
- SCA
- (i) Service Contract Act
- Sexual Compulsives Anonymous
- Society for Creative Anachronism
- SCAP — (a) Supreme Commander Allied Powers (Allied occupation of Japan)
- sccm — (s) Standard cubic centimetre per minute (unit of measurement of fluid flow)
- sccs — (s) Standard cubic centimetre per second (unit of measurement of fluid flow)
- scfh — (s) Standard cubic foot per hour (unit of measurement of fluid flow)
- scfm — (s) Standard cubic foot per minute (unit of measurement of fluid flow)
- scfs — (s) Standard cubic foot per second (unit of measurement of fluid flow)
- SCG — (s) Serbia and Montenegro (ISO 3166 trigram)
- SCHIMS — (i) Soldier Combat Helmet Identification Marking System
- SCHIP — (a) State Children's Health Insurance Program (U.S.; often pronounced "ess-chip")
- SciFi — Science Fiction
- sCJD — (i) Sporadic Creutzfeldt-Jakob disease
- SCM — (i) Surface Contamination Module
- SCMODS — (s) State, County, Municipal Offender Data System
- SCN — (p) Suprachiasmatic Nucleus
- SCNT — (i) Somatic Cell Nuclear Transfer
- SCO
- (i) Santa Cruz Operation (initials later used by SCO Group)
- (s) Scotland (FIFA trigram; not eligible for an ISO 3166 or IOC trigram)
- (a) Shanghai Cooperation Organization
- SCOTUS — (a) Supreme Court of the United States
- SCR — (s) Seychelles rupee (ISO 4217 currency code)
- SCRAM — (a) Safety Control Rod Axe Man
- SCS
- (i) Scan Correlated Shift
- Soil Conservation Service
- SCSI
- (a) Small Computer System Interface (“scuzzy”)
- (i) Strategic and Combat Studies Institute
- SCT — (s) Scattered Sky (METAR Code)
- SCTP — (i) Stream Control Transmission Protocol
- Scuba — (a) Self Contained Underwater Breathing Apparatus
- SCUF — Slow Continuous Ultrafiltration
- SCUFN — (i) Sub-Committee on Undersea Feature Names (of GEBCO)
Read more about this topic: List Of Acronyms And Initialisms: S