S3, S-3, S03, S III or similar may refer to:
Science and technology
Computing Amazon S3, also known as Amazon Simple Storage Service, an online data-storage service S3 Graphics, a computer-hardware company S3 Group, an Irish software company S3 Texture Compression, a group of lossy texture compression algorithms S3 (programming language), a language used to write the VME operating system and much other system software on the ICL 2900 Series S3, a standby mode in the Advanced Configuration and Power Interface (ACPI) specification S3, a file extension type for the Motorola S-record file format Snapdragon S3, a Qualcomm ARM system-on-a-chip; see List of Qualcomm Snapdragon systems-on-chip
Electronics
Cameras Canon PowerShot S3 IS, a 2006 digital camera; see Canon PowerShot S FinePix S3 Pro, a 2004 interchangeable lens digital single-lens reflex camera by Fujifilm Nikon S3, a 1958 35 mm rangefinder film camera Nikon Coolpix S3, a digital camera
Cellphones Infinix Hot S3, a smartphone released in 2018 Samsung Galaxy S III, or Samsung Galaxy S3, a smartphone: the successor to the Samsung Galaxy S II Samsung Galaxy S III Mini, or Samsung Galaxy S3 Mini, the mini version of the Samsung Galaxy S III Siemens S3, a Siemens Mobile phone
Other electronics Samsung Galaxy Tab S3, an Android tablet Samsung Gear S3, a 2016 smartwatch Samsung YP-S3, often referred to as the Samsung S3, an MP3 Player
Mathematics S3, the symmetric group of degree 3, which is identical to the Dihedral group of order 6 S3, the 3-sphere (a 3-manifold in four-dimensional space)
Medicine, anatomy, and botany Sacral spinal nerve 3, a spinal nerve of the sacral segment Third heart sound, or S3, a rare extra heart sound ATC code S03, Ophthalmological and otological preparations, a subgroup of the Anatomical Therapeutic Chemical Classification System British NVC community S3, Carex paniculata swamp; see Swamps and tall-herb fens in the British National Vegetation Classification system
Chemistry Trisulfur, chemical formula (S3), an allotrope of sulfur S-phrase 3, also referred to as S3, "Keep in a cool place", a safety phrase in chemistry; see List of S-phrases
Entertainment
Gaming Expedition to the Barrier Peaks, code S3, a 1980 Dungeons & Dragons adventure module S3 Plan, a fictitious program in the Metal Gear Solid 2: Sons of Liberty video game Silent Storm: Sentinels, a 2004 video game also known as S3: Silent Storm: Sentinels Splatoon 3, a 2022 video game for the Nintendo Switch
Other entertainment Si3 (film), originally titled S III and also known as Singam 3, the third film in the Singam franchise SABC 3, South African public television channel, stylised as S3
Transportation
Airlines Ashland Municipal Airport, FAA Location identifier S03, in Oregon, US SBA Airlines, IATA code S3, based in Caracas, Venezuela
Locomotives ALCO S-3, an American diesel switching (shunting) locomotive; see ALCO S-1 and S-3 NER Class S3, a North Eastern Railway steam locomotive class Prussian S 3, a steam locomotive
Rail lines
Austria only S3, a Carinthia S-Bahn line S3, a Styria S-Bahn line S3, an Upper Austria S-Bahn line S3, a Vienna S-Bahn line
Germany only S3 (Berlin), an S-Bahn line S3 (Munich), an S-Bahn line in Bavaria S3 (Nuremberg), an S-Bahn line in Bavaria S3 (Rhine-Main S-Bahn), Frankfurt Rhine-Main S3 (Rhine-Ruhr S-Bahn), North Rhine-Westphalia S3, a Breisgau S-Bahn line S3, a Dresden S-Bahn line S3, a Hamburg S-Bahn line S3, a Hanover S-Bahn line S3, a Rhein-Neckar S-Bahn line S3, a Rostock S-Bahn line S3, a Stuttgart S-Bahn line
Italy only Line S3 (Milan suburban railway service), commuter rail route in Italy
Switzerland only S3 (RER Vaud), an S-Bahn line S3 (St. Gallen S-Bahn), a former S-Bahn line S3 (ZVV), a line of the Zurich S-Bahn S3, a Basel S-Bahn line S3, a Lucerne S-Bahn line
International rail lines S3, a Salzburg S-Bahn line, Austria and Germany S3, a Tyrol S-Bahn line, Austria and Italy (South Tyrol) S3, a Vorarlberg S-Bahn line, Austria and Switzerland
Other Line S3 (Chengdu Metro), China Line S3 (Nanjing Metro), China
Cars Audi S3, released 1999, a version of the Audi A3 small family car Bentley S3, a four-door luxury car produced by Bentley from late 1962 until 1965 Luxgen S3, a sedan produced by Taiwanese-based manufacturer Luxgen starting from 2016 S3 Roadster, a car produced by South African-based manufacturer Birkin Cars, which was formed in 1982
Roads S3 Shanghai–Fengxian Highway, a planned expressway in Shanghai, China S-3 Strategic Highway, operated by the Pakistan Ministry of Defence; see National Highways of Pakistan (even though it is not actually a National Highway) Expressway S3 (Poland), a major road in Poland California County Route S3, from State Route 78 to Borrego Springs over the Yaqui Pass; see California county routes in zone S S3, a British term for a road with a suicide lane
Other transportation Stagecoach Gold bus route S3, a bus route in Oxfordshire, England AJS S3 V-twin, a British motorcycle Swiss Space Systems (S-3), an aerospace company in Switzerland
Military S3 (missile), a French nuclear missile now out of commission Lockheed S-3 Viking, an American anti-submarine aircraft developed in the 1970s S.3 Springbok, a British aerial reconnaissance aircraft of the 1920s; see Short Springbok USS S-3 (SS-107), a U.S. Navy submarine Norrland Signal Battalion, designation S 3, a Swedish signal unit S3, the operations officer in military units; see Staff (military)
Business and education Form S-3, a registration form used by the U.S. Securities and Exchange Commission SThree, a British recruitment agency S3 Safe Sex Store, an assumed name of Michigan corporation BAK S3 Asia MBA, a selective dual-degree, tri-city, tri-university global MBA program Third year, also known as S3, Scottish secondary education for pupils aged about 14
Other uses S3 (classification), a classification for swimmers based on their level of disability Postcode district S3, part of the S postcode area of the UK, covering part of Sheffield
See also 3S (disambiguation) SSS (disambiguation) Schedule 3 (disambiguation)