B46 may refer to:
*
Bundesstraße 46, a German road
*
B46 (New York City bus)
The B46 bus route constitutes a public transit corridor in Brooklyn, New York City. The route runs primarily along Utica Avenue north from the Kings Plaza shopping center through Eastern Brooklyn, with continued service west along Broadway t ...
, a bus line in Brooklyn
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B46 nuclear bomb
The B46 nuclear bomb (or Mk-46) was an American high-yield thermonuclear bomb which was designed and tested in the late 1950s. It was never deployed. Though originally intended to be a production design, the B46 ended up being only an intermediate ...
*
HLA-B46
HLA-B46 (B46) is an HLA- B serotype. The serotype identifies the gene products of HLA-B*4601 allele.
B*4601 resulted from a rare, interlocus, gene conversion between B62, probably B*1501, and a HLA-C allele. B*4601 is the most common HLA-B all ...
, a HLA-B serotype
* B46, the Taimanov variation of the
Sicilian Defence chess opening
*
Convair XB-46
The Convair XB-46 was a single example of an experimental medium jet bomber which was developed in the mid-1940s but which never saw production or active duty. It competed with similar designs, the North American XB-45 and Martin XB-48, all of w ...
, an American aircraft
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