| WSPO | AM-1490, Johnstown, Pennsylvania
| Others |
| WSPO | Warfare System Program Office
| Others |
| WSPO | Warfare Systems Program Office
| Others |
| WSPO | Water Soluable Phosphorous, Organic
| Others |
| WSPO | Weapon System Project Office
| Others |
| WSPO | Wigmore Street Post Office
| Others |
| WSPO | Wilfa Svart Pour Over
| Others |
| WSPO | Wire Services Payment Operations
| Others |
| WSPO | Wireless System Program Office
| Others |
| WSPO | Wolf School Parent Organization
| Others |
| WSPO | Work Study Programmes Office
| Others |
| WSPO | World Speed Poker Open
| Others |
| WSPO | WP SEO Plugin Optimizer
| Others |
| WSPO | Writer's and Small Publisher's Outlet
| Others |