| Acronym | Definition |
|---|
| SSEC | SKA (Square Kilometre Array) Science and Engineering Committee |
| SSEC | Shanghai Stock Exchange Composite (index; China) |
| SSEC | Soft Sector |
| SSEC | Space Science and Engineering Center (University of Wisconsin-Madison Graduate School) |
| SSEC | Selective Sequence Electronic Calculator |
| SSEC | Shanghai Stock Exchange China |
| SSEC | Space Science Engineering Center |
| SSEC | Solid State Electronics Center (Honeywell) |
| SSEC | Shirdi Sai Engineering College (India) |
| SSEC | Scottish Social Enterprise Coalition (UK) |
| SSEC | South Shore Educational Collaborative (Hingham, MA) |
| SSEC | Static Source Error Correction |
| SSEC | Solid State Equipment Corporation (Horsham, PA) |
| SSEC | Sri Sairam Engineering College (est. 1995; India) |
| SSEC | Sutherland Shire Environment Centre (Australia) |
| SSEC | Sarnia Sports and Entertainment Centre (Canada) |
| SSEC | Solar System Exploration Committee (NASA) |
| SSEC | Saigon Sky Exhibition Center (Ho Chi Minh City, Vietnam) |
| SSEC | Structural Steel Educational Council |
| SSEC | South Sea Evangelical Church (Solomon Islands) |
| SSEC | Society for the Study of Early Christianity (Australia) |
| SSEC | Small Signal Equivalent Circuit |
| SSEC | Southwest Systems Engineering Corporation (est. 1991; Sierra Vista, AZ) |
| SSEC | Society for the Study of Early China |
| SSEC | Suzhou Samsung Electronics Co., Ltd. (China) |
| SSEC | Singapore Standard Educational Classification (Singapore) |
| SSEC | Southern Solar Energy Center |
| SSEC | Sinopec Shanghai Engineering Company Limited (China) |
| SSEC | Singlespeed European Championship (bicycle race) |
| SSEC | Shantilal Shah Engineering College |
| SSEC | Source Selection Evaluation Committee |
| SSEC | Southern Most Branch of the South Equatorial Current |
| SSEC | Student Section Executive Committee (various universities) |
| SSEC | Senior System Engineering Council |
| SSEC | Sound Surveillance Evaluation Center |
| SSEC | Surface Ship Engineering Center |
| SSEC | Student Stock Exchange Concilium (McGill University) |
| SSEC | Santé, Sécurité, Environnement et Communauté (French: Health, Safety, Environment and Community) |