| Acronym | Definition |
|---|
| SECA➣Solid State Energy Conversion Alliance |
| SECA➣Swiss Private Equity & Corporate Finance Association |
| SECA➣Southern Early Childhood Association |
| SECA➣Southern Europe and Central Asia (various organizations) |
| SECA➣Sulphur Emission Control Area |
| SECA➣Society for the Encouragement of Contemporary Art (San Francisco Museum of Modern Art; California) |
| SECA➣SOx Emission Control Area |
| SECA➣Stato Ecologico Dei Corsi d'Acqua (ecology, Italy) |
| SECA➣South East Clown Association (North Carolina, USA) |
| SECA➣Support Equipment Controlling Authority |
| SECA➣Self-Employment Contributions Act of 1954 |
| SECA➣State Employees Commuter Association (Albuquerque, NM) |