B type

B type or Type B may refer to:

Astronomy

 * B-type asteroid, a type of relatively uncommon type of carbonaceous asteroid
 * B-type giant, a type of blue giant star
 * B-type star, a type of star

Biology

 * B type blood, a type in the ABO blood group system
 * B type inclusion, a type of inclusions in cells infected with poxvirus
 * B-type natriuretic peptide, a type of brain natriuretic peptides
 * B type proanthocyanidin, a specific type of flavanoids
 * Type B evaluation of uncertainty, an uncertainty in measurement inferred from scientific judgement or other information concerning the possible values of the quantity
 * Type B personality, a type in the Type A and Type B personality theory

Others

 * B-type warbird, a type of Romulan starship
 * Type B videotape, an open-reel videotape format
 * Type B plug (see also NEMA connector)
 * Curtiss-built B-type, a type of B class blimp
 * LGOC B-type, a model of double-decker bus that was introduced in London on 1910
 * Mann Egerton Type B, a 1910s British maritime patrol aircraft
 * Toyota Type B engine, an internal combustion engine
 * Vauxhall B-Type, a large car from 1911 to 1914
 * Type B ship, a U.S. designation for World War II barges
 * B type Adelaide tram