B99 may refer to:
Transportation
*
Beechcraft Model 99
The Beechcraft Model 99 is a civilian aircraft produced by American manufacturer Beechcraft. It is also known as the Beech 99 Airliner and the Commuter 99. The 99 is a twin-engine, unpressurized, 15 to 17 passenger seat turboprop aircraft, deriv ...
, a civilian aircraft produced by Beechcraft
*
Bundesstraße 99
The Bundesstraße 99 is a German federal highway. It originally ran from Neusalz via Rothenburg, Oberlausitz and Görlitz to Zittau where it ended at the Bundesstraße 96
The Bundesstraße 96 (B 96) is a federal highway in Germany. It begins ...
, a German federal highway
*
Jaguar B99, a concept car designed and developed by the Italian design house Bertone
* Lola B99/50,
a Formula Two race car designed by Lola Cars
Other
* ''
Brooklyn Nine-Nine
''Brooklyn Nine-Nine'' is an American police procedural sitcom television series that aired on Fox Broadcasting Company, Fox, and later on NBC, from September 17, 2013, to September 16, 2021, for eight seasons and 153 episodes. Created by Dan G ...
'', an American police procedural comedy television series
*
GTSE1 (also B99), an enzyme that in humans is encoded by the ''GTSE1'' gene
*
Sicilian Defence, Najdorf Variation
The Najdorf Variation ( ) of the Sicilian Defence is one of the most popular, reputable, and deeply studied of all chess openings. ''Modern Chess Openings'' calls it the "Cadillac" or "Rolls-Royce" of chess openings. The opening is named after th ...
(''ECO'': B90–B99), one of the most respected and deeply studied of all chess openings
{{letter-number combination disambiguation