ST

ST, St, or St. most often refers to:

ST, St, or St. may also refer to:

Arts and entertainment

Stanza, in poetry
Suicidal Tendencies, an American heavy metal/hardcore punk band
Star Trek, a science-fiction media franchise
Summa Theologica, a 13th-century compendium of Catholic philosophy and theology by St. Thomas Aquinas
"S.T. the Space Traveler", a 1990 episode (S8 E8 / #97) of 1983 TV series Alvin and the Chipmunks
Stranger Things, a 2016–2025 Netflix sci-fi horror series
Skibidi Toilet, a 2023–present YouTube animated web-series

São Tomé and Príncipe
Saxony-Anhalt (ISO 3166 code DE-ST), a state of Germany
ST postcode area, UK, centered around Stoke-on-Trent
Split, Croatia and its surrounds, indicated with prefix ST on vehicle registration plates of Croatia
Sudan (aircraft registration prefix ST; see aviation in Sudan)

ST connector, Straight Tip optical fiber connector
Seagate Technology, an American data storage company, whose hard disk drives are named with the prefix "ST-"
STMicroelectronics, a worldwide manufacturer of semiconductors
Atari ST, a 1985 line of personal computers
Internet Stream Protocol, an experimental Internet protocol
Structured text, a high-level programming language that syntactically resembles Pascal and is designed for programmable logic controllers (PLC)
.st, the Internet country code top-level domain (ccTLD) for São Tomé and Príncipe
st, a simple terminal emulator, written by suckless

ST segment, the part of an electrocardiogram connecting the QRS complex and the T wave
Sulfotransferase, enzymes that catalyze the transfer of a sulfo group
Heat-stable enterotoxin, secretory peptides produced by some bacterial strains, such as enterotoxigenic Escherichia coli

Stokes (unit) (St), a CGS unit of kinematic viscosity
Stone (weight) (st.), a unit of mass used in the British Isles and other countries

ST Engineering, a global technology, defense, and engineering group headquartered in Singapore
ST, the ship prefix for a steam tug or steam trawler

German airline Germania (airline) (IATA airline designator "ST")
ST, the railroad reporting mark for American railroad Springfield Terminal Railway (Vermont)
Sound Transit, a shortened form of Central Puget Sound Regional Transit Authority in the U.S. state of Washington
State Transport, a shortened form of Maharashtra State Road Transport Corporation of India
Suffolk Transit, a shortened form of Suffolk County Transit, the bus system serving Suffolk County, New York, U.S.
Stouffville line (ST), of the GO Transit rail network in Ontario, Canada

sine tempore, a Latin term used to indicate that a lecture will begin at the exact time; see academic quarter (class timing)
Striker (association football), a position in association football
Statstjänstemannaförbundet, or Swedish Union of Civil Servants, a trade union