SDO
Template:Sister project SDO may stand for: Template:TOCright
Astronomy
- Scattered disc object in the Solar System
- Solar Dynamics Observatory, a NASA mission to study the Sun
- Subdwarf O star (sdO)
Computing, software, electronics
- Service Data Object protocol under the CANopen protocol
- Service Data Objects, allowing uniform data access
- Intel Secure Device Onboard for IoT
- Spatial Data Option, late Oracle Spatial and Graph
- Silent Death Online (videogame), from Mythic Entertainment
Groups, companies, organizations
- Standards developing organization
- San Diego Opera, California, USA
- Secret Double Octopus, Israeli software company
- SDO Bussum, Bussum, Netherlands; a Dutch association football club
- Air Santo Domingo (ICAO airline code
SDO)
Other uses
- Sub Divisional Officer, a government officer in charge of a subdivision in a district in India.
- Selective door operation on trains
- Social dominance orientation, a personality trait
- Bukar–Sadong language (ISO 639 language code
sdo) - Template:Ill (Template:Langx), Via della Pietra Sanguigna, Rome, Italy; a cancelled-planned business district around Quintiliani subway station