- BBY stands for Best Buy (stock symbol)
- BBY stands for BlackBerry (mobile communications)
- BBY stands for Burnaby (BC, Canada town)
- BBY stands for Back Bay Station (Amtrak station code; Back Bay Boston, MA)
- BBY stands for Before Battle of Yavin (Star Wars)
- BBY stands for Building Blocks for Youth
- BBY stands for BeBeyond (Chinese online community)
- BBY stands for Burdett, Buckeridge Young, Ltd. (Australia; est. 1987)
- BBY stands for Best Boats Yachting
BBY