| Abbreviation | Definition |
|---|---|
| SELL | Finlands Veterinrfrbund |
| SELL | Finnish Veterinary Association |
| SELL | Societas Veterinariorum Finlandiae |
| SELL | Suomen Eläinlääkäriliito |
| SELL | Suomen Elinlkriliito |
| SELS | Sports and Entertainment Law Society |
| SEM | Society for Ethnomusicology |
| SEMAC | Sociedad de Ergonomistas de México AC |
| SEMDSA | Society of Endocrinology, Metabolism and Diabetes of South Africa |
| SEN | Sociedad Española de Neurología |
| SEN | Sociedad Espaola de Neurologa |
| SEN | Spanish Society of Neurology |
| SENC | Sociedad Española de Neurociencia |
| SENC | Sociedad Espaola de Neurociencia |
| SENC | Spanish Society of Neuroscience |
| SEP | Association of Polish Electrical Engineers |
| SEP | Stowarzyszenie Elektryków Polskich |
| SEP | Stowarzyszenie Elektrykw Polskich |
| SEPA | Society of Elementary Presidential Awardees |
| SEPD | Sociedad Española de Patología Digestiva |