B type or Type B may refer to:

• 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

• 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

• 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

• B class (disambiguation)
• Class B (disambiguation)

This disambiguation page lists articles associated with the title B type.
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