SSIN
| Acronym | Definition |
|---|---|
| SSIN | Social Services Information Network (est. 1986; now the Association of Social Care Communicators; UK) |
| SSIN | Scottish Social Inclusion Network (est. 1998; UK) |
| SSIN | Solar Student Information Network (solar energy) |
| SSIN | Student Success in Nursing (El Paso Community College School of Nursing; El Paso, TX) |
| SSIN | Student Support Information Note (UK) |