BBO

BBO may stand for:

• Big Bang Observer, planned space gravitational wave observatory
• Beta barium borate (β-BaB₂O₄) crystal
• Black Bag Operations
• Bureau Bijzondere Opdrachten, a Dutch secret service during World War II
• The Bridge Base Inc. web site Bridge Base Online
• British Ballet Organisation, a dance teaching and examination board
• Broome Bird Observatory
• BBO, the ICAO code for Flybaboo
• Bottom Bottle Opener, a cap-shaped indentation found in the bottom of Miller High Life bottles in the late 1980s which could be used to open other bottles of Miller High Life.
• Best Bid Offer, a type of financial quote that includes the best bid and ask (offer) prices
• Biogeography-Based Optimization, a type of evolutionary algorithm