BSY
| Acronym | Definition |
|---|---|
| BSY | Busy |
| BSY | Busy Line |
| BSY | Be Seeing You |
| BSY | Bihar School of Yoga (India) |
| BSY | British School of Yoga |
| BSY | Boewe Systec AG (German mail solutions provider; stock symbol) |
| BSY | Balika Samriddhi Yojana (Indian benefit program) |
| BSY | Beach Sportcycles Yamaha (Cocoa, FL) |
| BSY | Bored Suburban Youth (band) |
| BSY | Bit Sync |