SID
Sid or SID may refer to:
People
- Sid (given name), includes a list of people with the name
Science and technology
- Sound Interface Device: the MOS Technology 6581 sound-generating chip used in some Commodore computers
- Security Identifier, used by Microsoft
- Sid blood group system
- Saab Information Display in cars
- Slew-induced distortion, in an amplifier
- Source to image-receptor distance, in radiology
- Sudden ionospheric disturbance, caused by a solar flare
- Surface-induced dissociation, in mass spectrometry
- System identification number, in wireless telephony
- Source Identification codes, identifying marks on optical discs introduced by the International Federation of the Phonographic Industry
- mSin3 interaction domain, a transcriptional repressor domain
- .sid, MrSID image file extension
- Sid (Debian), the code name for the 'unstable' distribution of the operating system
Entertainment
- Sid (band), a Japanese rock band
- Síd, a fairy mound in Irish folklore
- Superman Is Dead, or S.I.D., an Indonesian rock band
- Space Intruder Detector, satellite in the UK TV series UFO
- Sid Vere, a fictional character from Doctors
- The given name of the Cookie Monster is Sid.
Transport
- Standard instrument departure, flight procedure
- Amílcar Cabral International Airport, Sal Island, Cape Verde
- Sidcup railway station (National Rail station code), London, England
Organizations
- Danish General Workers' Union, former trade union in Denmark
- Security and Intelligence Division, Singapore's Foreign intelligence agency
- Servizio Informazioni Difesa, the Italian military secret service 1965-1977
- Service for Research and Documentation, the Serbian intelligence agency
- Society for Information Display
- Society for International Development
- Sport-Informations-Dienst, German sports media service
- Special Investigations Division (disambiguation)
Places
Other uses
- Status–income disequilibrium, a political term
- Sports information director
- Self-identification or self-id