| Acronym | Definition |
|---|
| SOPA | Stop Online Piracy Act |
| SOPA | School of Performing Arts (various locations) |
| SOPA | Studio of Performing Arts (Arroyo Grande, CA) |
| SOPA | Sydney Olympic Park Authority (Australia) |
| SOPA | Society of Publishers in Asia (est. 1982) |
| SOPA | State of the Province Address (various locations) |
| SOPA | Schedule of Proposed Actions |
| SOPA | School of Public Affairs (various locations) |
| SOPA | Security of Payment Act (Australia) |
| SOPA | Socialist Party of Azania (South Africa) |
| SOPA | Senior Officer Present Afloat (US Navy; US DoD) |
| SOPA | School of Physics and Astronomy (various locations) |
| SOPA | Student Oral Proficiency Assessment |
| SOPA | Society of Professional Archeologists |
| SOPA | Synchronous-Orbit Particle Analyzer |
| SOPA | State of Play Academy (legal technology community) |
| SOPA | South of Pandosy Street (area in Kelowna, British Columbia, Canada) |
| SOPA | Standard Operating Procedure Amplified (aviation) |
| SOPA | Safety Office of Policy Analysis (City of Denver) |
| SOPA | Supporters of the Performing Arts, Inc. (Estes Park, CO, USA) |
| SOPA | Space-Only Power Allocation |
| SOPA | Selanik Ozel Pedagoji Akademisi |
| SOPA | Supporters of Performing Arts |
| SOPA | Salinas Owners and Pilots Association (Salinas, CA) |
| SOPA | Southern Oregon Photographic Association (Medford, OR) |