| Acronym | Definition |
|---|
| SII➣Seiko Instruments, Inc. |
| SII➣Servicio de Impuestos Internos (Chile) |
| SII➣Standards Institution of Israel |
| SII➣Silicon Image, Inc. |
| SII➣Sistema Integral de Información (Spanish: Integrated Information System; Mexico) |
| SII➣Strong Interest Inventory |
| SII➣Société pour l'Informatique Industrielle (French: Society for Industrial Computers) |
| SII➣Silicon Image Inc. |
| SII➣Service Interval Indicator |
| SII➣Spatial Information Infrastructure |
| SII➣Securities and Investment Institute (UK) |
| SII➣Securities Industry Institute (executive development program) |
| SII➣Solvency II (insurance requirements) |
| SII➣Self-Inflicted Injury |
| SII➣Systemic Infrastructure Initiative (Australia) |
| SII➣Síndrome de Intestino Irritable (Spanish: Irritable Bowel Syndrome) |
| SII➣Sensory Integration International |
| SII➣Sciences International, Inc. (now Tetra Tech Sciences; Virginia) |
| SII➣Standards Institute of Israel |
| SII➣Scout II (truck model) |
| SII➣Successor In Interest |
| SII➣Social Insurance Institution of Finland |
| SII➣Southern Ionics Incorporated (West Point, MS) |
| SII➣Service Improvement Initiative (Canada) |
| SII➣Siilinjärvi (Finland) |
| SII➣Special Interest Item |
| SII➣Scott's Inspections Inc (San Antonio, TX) |
| SII➣Space Industries, Inc. |
| SII➣Scalable Information Infrastructure |
| SII➣Strategic Infrastructure Initiative |
| SII➣Special Investigative Inquiry |
| SII➣Statement of Intelligence Interest |
| SII➣Self Identified Issue (various organizations) |
| SII➣Société Immobilière d'Investissement (French: Real Estate Investment Company) |
| SII➣Special Instructions Indicator |
| SII➣Strengths, Improvements, and Insights |
| SII➣System Internal Interface |
| SII➣Security Investigation Index |
| SII➣Service Identity Index |
| SII➣Suitability Investigative Index |
| SII➣Southern Industrial Institute, Inc. |
| SII➣Sinclair Intimacy Institute |
| SII➣Software International Incorporated |
| SII➣Soldier Information Interface |
| SII➣Systems Interface Inc. |
| SII➣Static/Stub Invocation Interface (CORBA client-side API) |
| SII➣Strategic Inventory Initiative |
| SII➣Sponsor Identification Index |
| SII➣Semantic Information Integration (Digital Enterprise Research Institute; Ireland) |