S2, S 2, S.2 or S-2 may refer to:

In the military [link]

• S-2 (military), a military intelligence officer
• Soviet submarine S-2, a Soviet World War II submarine
• Grumman S-2 Tracker, a US Navy aircraft
• Finnish torpedo boat S2, which sank in 1925
• USS S-2 (SS-106), a US Navy submarine
• a designation for Göta signalregemente, a 1944-1997 Swedish Army signal regiment

Transportation [link]

Automobiles [link]

• Audi S2, a turbo-charged sports car
• Lotus Elise S2, a production series of roadster automobile
• Porsche 944 S2, a 3l naturally aspirated sports car (mf. 1989-1991)

Aircraft [link]

• Focke-Wulf S 2, a 1928 German trainer aircraft
• SABCA S-2, a 1926 Belgian aircraft
• Short S.2, a Short Brothers aircraft
• Strojnik S-2, motorglider

Locomotives [link]

• Alco S-2, a locomotive
• PRR S2, a unique steam turbine locomotive
• Prussian S 2, an 1884 steam locomotives class

Lines and roads [link]

• S2 (Berlin), an S-Bahn line
• S2 (Dresden), an S-Bahn line
• S2 (Munich), an S-Bahn line
• S2 (Rhine-Ruhr S-Bahn), an S-Bahn line
• a planned Bremen S-Bahn line
• a Hamburg S-Bahn line
• a Hanover S-Bahn line
• a Nuremberg S-Bahn line
• a Rhine-Main S-Bahn line
• a RheinNeckar S-Bahn line
• a Rostock S-Bahn line
• a Stuttgart S-Bahn line
• a Stadtbahn Karlsruhe line
• S2 (ZVV), a line of the S-Bahn Zürich in Switzerland
• County Route S2 (California)
• Expressway S2 (Poland), a southern bypass of Warsaw
• S2 National Highway, one of the National Highways of Pakistan
• S2 expressway (Shanghai), an expressway in Shanghai also known as the Hulu Expressway

In science [link]

• S2 (star), a star in the center of the Milky Way galaxy
• S/2007 S 2, a natural satellite of Saturn
• British NVC community S2, a swamps and tall-herb fens community in the British National Vegetation Classification system
• S2, an allotrope of sulfur
• Secondary somatosensory cortex, a brain area in the parietal cortex
• Schneider 2 cells, or S2 cells, a commonly used Drosophila cell line.

Businesses [link]

• S2 Records, a subsidiary of Sony Music
• S2, a former Scottish television channel
• S2 Games, a video game developer
• S2 Yachts, a now-defunct sailboat-building company
• S2 Security Corporation, an IP-based security product manufacturer

Cameras [link]

• Nikon S2, a 35mm rangefinder camera produced between 1954 and 1958 as part of the Nikon S-mount range.
• Canon PowerShot S2 IS, a 2005 5.0 megapixel digital camera
• FinePix S2 Pro, a 2002 interchangeable lens digital single-lens reflex camera by Fuji
• Leica S2, a 2009 37 million pixel medium format digital single-lens reflex camera
• Nikon Coolpix S2, a 5.4 million pixel digital camera

Other [link]

• S2 programming language
• S2 Spreadsheet
• S2: Keep out of the reach of children, a safety phrase in chemistry
• a district of the S postcode area, covering areas of eastern Sheffield
• a heart emoticon
• an abbreviation for a standard single carriageway road, with a single lane going in each direction

Acronyms [link]

• Bangladesh aircraft registration code
• JetLite IATA airline designator
• sacral spinal nerve 2, a spinal nerve of the sacral segment
• Schedule 2, an Australian legal category assigned to drugs
• second sacral vertebrae
• second year in the Scottish education system
• a version of the racing simulation Live for Speed

With superscripts and subscripts [link]

S₂ may refer to:

• S₂, a sound in cardiac auscultation
• disulfur, an allotrope of sulfur

S² may refer to:

• The two-dimensional sphere
• S² Engine, the SuperSolenoid engine of Neon Genesis Evangelion

S02 [link]

• The special orthogonal group of a two-dimensional vector space
• ATC code S02 Otologicals, a subgroup of the Anatomical Therapeutic Chemical Classification System
• HMS Rorqual (S02), a 1956 British Royal Navy Porpoise-class submarine

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.