SCID may stand for:
Computing
- Shane's Chess Information Database, a chess database to maintain, view and replay chess games
- Source code in database, program source code stored in a database with structural relations reflecting the language syntax and program structure
- Synchronous optical networking, carrier identification
Health
- Severe combined immunodeficiency, a genetic disorder in which the immune system fails to develop
- Severe combined immunodeficiency (non-human), a variation in nonhumans
- Structured Clinical Interview for DSM
- SCI/D, referring to spinal cord injury and spinal cord disorder
Other
- Doctor of Science (Sci.D)