| Acronym | Definition |
|---|
| YSP | Yamaha Sound Projector |
| YSP | Yield Spread Premium |
| YSP | Yamaha Sports Plaza (Fairview, OR) |
| YSP | Young Scientist Program (various schools) |
| YSP | Yemeni Socialist Party (Yemen) |
| YSP | Youth Smoking Prevention |
| YSP | Youth Sailing Program (various organizations) |
| YSP | Marathon, Ontario, Canada (Airport Code) |
| YSP | Youth Shoulder Pad (sports equipment) |
| YSP | Yale Summer Program |
| YSP | Yearly Subscription Plan (auction platform) |
| YSP | District Pontoon Salvage (US Navy) |
| YSP | Your Satellite Provider |
| YSP | Years of Service for Severance Pay Purposes |