SSEA
| Acronym | Definition |
|---|---|
| SSEA | Stage-Specific Embryonic Antigen |
| SSEA | Society for the Study of Egyptian Antiquities |
| SSEA | Secretary of State for External Affairs (Canada) |
| SSEA | Stanford Summer Engineering Academy (Stanford University; Stanford, CA; est. 1998) |
| SSEA | Sweet Sorghum Ethanol Association (global organization) |
| SSEA | Simple Single Engine Aircraft |
| SSEA | Social Sciences Employees Association (Canada) |
| SSEA | Société Suisse des Études Africaines (French) |