ST
St is a common abbreviation for:
- Saint
- Stone (weight), a unit of mass (spelt as St. in formal British English)
- Street (spelt as St. in formal British English)
- Such that in set theory, Mathematical proofs and many other areas
- , a Sim City 4 fansite, is often abbreviated to ST.
ST, St or st may also mean:
- Atari ST, a computer
- ST protocol (Internet Stream Protocol)
- Germania (airline), IATA airline designator
- Saint Lucia, NATO country code
- Sanitary towel
- São Tomé and Príncipe, ISO country code
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- .st is the Internet country code top-level domain (ccTLD) for São Tomé and Príncipe
- Scheduled tribes, the disadvantaged tribes of India commonly known as Adivasi
- Secret Team
- Sesotho language, ISO language code
- Star Trek
- Starship Troopers, 1959 science fiction novel by Robert A. Heinlein
- Starship Troopers (film), 1997 film, loosely based on the novel Starship Troopers by Robert A. Heinlein
- STMicroelectronics, a worldwide manufacturer of semiconductors
- The Straits Times, a Singaporean broadsheet
- ST connector, a type of optical fiber connector
- Stanton number, in physics
- Statstjänstemannaförbundet, the Swedish Union of Civil Servants..
- self-titled (S/T), appears on album titles named after their own bands
- Springfield Terminal Railway, AAR reporting mark
- Southern Telecom in Russia
- Steven Tyler, a prominent rock singer
- st, ſt (st, ſt) a common typographical ligature
- , a manufacturer of performance suspension components
- Suicidal Tendencies, a hardcore punk/crossover thrash band from Venice, CA.
In Architecture
- Sears Tower, a 433 meter-tall tower in Chicago, Illinois
- Sky Tower, a 328 metre-tall tower in Auckland, New Zealand
- Sydney Tower, a 304 metre-tall tower in Australia