'''B2''', '''B02''', '''B.II''', '''B.2''' or '''B-2''' may refer to: {{TOC right}}

== Transportation==

===Aircraft=== * AEG B.II, a German aircraft during World War I * Albatros B.II, a 1914 unarmed German two-seat reconnaissance biplane * Aviatik B.II, a 1915 German reconnaissance aircraft * Blackburn B-2, a British biplane side-by-side trainer aircraft * Brantly B-2, a helicopter * Curtiss B-2 Condor, an American biplane bomber built before World War II * DFW B.II, a 1914 German aircraft * Euler B.II, a German Idflieg B-class designation aircraft * Farman B.2, a French Farman aircraft * Flanders B.2, a 1912 British experimental biplane * Fokker B.II (1916), two different German unarmed observation aircraft of World War I * Fokker B.II (1923), a 1923 Dutch reconnaissance flying boat * Halberstadt B.II, a German Idflieg B-class designation aircraft * Lohner B.II * LVG B.II, a 1910s German two-seat reconnaissance biplane * Northrop B-2 Spirit, an American stealth bomber of the United States Air Force * Avro Vulcan B2, the Mark 2 version of a Royal Air Force V-Bomber aircraft * Any Mark 2 bomber aircraft under the British military aircraft designation systems

===Locomotives=== * Alsace-Lorraine B 2, an Alsace-Lorraine P 1<!--OK if first link red--> class steam locomotive * Bavarian B II, an 1851 German steam locomotive model * GS&WR Class B2, a Great Southern and Western Railway<!--OK if first link red--> Irish steam locomotive * LB&SCR B2 class, a British LB&SCR locomotive class * GCR Class 1, classified B2 during ownership, reclassified B19 in 1945 * LNER Thompson Class B2, a British class of 4-6-0 steam locomotives rebuilt from B17s * NCC Class B2, a Northern Counties Committee<!--OK if first link red--> Irish steam locomotive

=== Submarines === * {{USS|B-2|SS-11}}, an American B-class submarine of the US Navy * {{HMS|B2|}}, one of eleven British B class submarines of the Royal Navy

===Roads=== {{main|List of B2 roads}}

===Other transport=== * B2 (New York City bus) serving Brooklyn *Belavia Belarusian Airlines (IATA airline designator code B2) * Marussia B2, a high-performance luxury sports coupé built by Russian automaker Marussia Motors *Guangzhou Metro CSR-Zhuzhou Class B EMU, internal callsign B2 for the first batch

== Computing == * b2/cafelog, the precursor to the WordPress blogging software * B2evolution, a multi-lingual, multi-user, multi-blog publishing system forked from b2/cafelog * B2, a subclass of security level B as defined by Trusted Computer System Evaluation Criteria (TCSEC) standards * B2, a cloud-based object storage service provided by Backblaze

== People and characters == * B2, the name of a character from the Dutch television series ''Bassie en Adriaan'' * B-2 or B² (B squared), the stage name used by wrestler Barry Buchanan * B2, one of a pair of bananas featured in the children's television show ''Bananas in Pyjamas'' * Birch Bayh (Birch Evans Bayh II)

== Visas ==

* South Korea B-2 visa, a tourist or transit visa granted by South Korea * United States B-2 visa, a non-immigrant visa granted by the United States of America

== Biology == * ATC code B02 ''Antihemorrhagics'', a subgroup of the Anatomical Therapeutic Chemical Classification System * Bradykinin receptor B<sub>2</sub>, a human gene * Proanthocyanidin B2, a B type proanthocyanidin * Thromboxane B2, an inactive metabolite/product of thromboxane A2 * Vitamin B<sub>2</sub>

== Other == * B2, a postcode area in central Birmingham * B2 basketball league (Albania); see Albanian Basketball League * B2, an international standard paper size defined in ISO 216 measuring 500&nbsp;mm × 707&nbsp;mm * B2, a level in the Common European Framework of Reference for Languages * B2, a code used by the land use planning system in the UK * B2 star, a subclass of bluish-white B-class stars * B02, Alekhine's Defence chess code * B2 dye, also known as dyesol *B2 (classification), a Paralympic disability classification * Bi-2, a Russian rock band * B2 intermetallic compound with equal numbers of atoms of two metals * B2, an advanced model of battle droid in the Star Wars franchise * B2, a brand of Canadian retailer Browns Shoes * b2, a common nickname or abbreviation of bilibili used on the English Internet.

==See also== {{canned search|b2|b-2|bii|b-ii}} * 2B (disambiguation) * {{lookfrom|B2}} * {{intitle|B-2}} * {{intitle|B2}} * {{intitle|B-II}} * {{intitle|BII}} * BII (disambiguation) * BTO (disambiguation)

{{Letter-Number Combination Disambiguation}}