B.B.

B.B. is an abbreviation which may refer to:

• Ballast Bonus - a special payment in shipping terms
• Bareboat - a shipping term describing a type of charter
• Boys' Brigade - an international non-denominational Christian youth organization
• Ball bearing - particularly in the context of a BB gun: a primitive air weapon that fires ball-bearings or similarly-shaped shot.

B.B. was also the pen name of the British children's writer Denys Watkins-Pitchford (1905-1990), author of The Little Grey Men (1942) and other novels which drew much of their lyrical inspiration from the natural world.