B3

B3, B03, B.III or B-3 may refer to:

• B3 (band), an American boy band most popular in Germany
• B3 domain, a highly conserved plant DNA-binding domain
• B3 Henk, a Dutch underground artist Mostly known for his hip hop group Roffe Rijmers and heavy metal band called Undead Rhythms
• B-3 Long Range Strike Platform, a successor aircraft to the B-1, B-2, and B-52
• B3 (New York City bus) serving Brooklyn
• B3 oil field, an oil and gas field in the Baltic sea
• B3 road (Cyprus)
• B3 road (Kenya)
• B3 (Placebo EP), an EP by alternative rock band Placebo
• AEG B.III, a German reconnaissance aircraft
• Albatros B.III, a German Idflieg B-class designation aircraft
• Alsace-Lorraine B 3, a Alsace-Lorraine P 1 class steam locomotive
• ATC code B03 Antianemic preparations, a subgroup of the Anatomical Therapeutic Chemical Classification System
• Aviatik B.III, a 1916 Austro-Hungarian reconnaissance aircraft
• Battlefield 3, a 2011 first-person shooter video game published by Electronic Arts
• Batman Forever, the third film in the Tim Burton/Joel Schumacher Batman film series
• The Dark Knight Rises, the third film in the Christopher Nolan Batman film series
• Bavarian B III, a 1852 German steam locomotive model
• Bensen B-3, a Bensen aircraft
• Benz B.III, an engine powering the 1914 Friedrichshafen FF.33 German aircraft
• Euler B.III, a German Idflieg B-class designation aircraft
• Fokker B.III (disambiguation), two aircraft model
• Halberstadt B.III, a German Idflieg B-class designation aircraft
• Hammond B-3, an electric organ made by Hammond
• HMS B3, a British B class submarine of the Royal Navy
• Kampfgeschwader 54, from its historic Geschwaderkennung code with the Luftwaffe in World War II
• Keystone B-3, a biplane bomber of the United States Army Air Corps
• Lohner B.III
• LVG B.III, a 1910s German two-seat trainer biplane
• Model B3 chair, a 1925 German Wassili designer chair
• NCC Class B3, a 1890 Irish 4-4-0 passenger steam locomotive
• NSB B3 (Class 3), Norwegian railway carriages
• Proanthocyanidin B3, a plant phenolic compound
• Prodelphinidin B3, a plant phenolic compound
• PRR B3, an American electric Pennsylvania Railroad locomotive model
• USS B-3 (SS-12), a United States Navy submarine
• Vitamin B₃ (niacin)

and also :

• Bundesstraße 3, a German national highway
• an ISO 216 international standard that defines paper size
• a type of four-cylinder Mazda B engine
• the International Air Transport Association code for Bellview Airlines
• a subclass of B-class stars in stellar classification
• a permission code for Town and country planning in the United Kingdom
• a TCSEC security class in the Trusted Computer System Evaluation Criteria
• Big Brother Bot, a game administration bot
• B03, Alekhine's Defence chess code