| Abbreviation | Definition |
|---|---|
| SIBC | Sydney International Business College |
| SIBIN | Sikkim Binding Industries |
| SIDA | Sindh Irrigation and Drainage Authority |
| SIF | Success In Forex |
| SIFC | Seoul International Financial Center |
| SIFMA | Security Industry/ Financial Market Association |
| SIGRS | Sistema Inteligente de Gestão Empresarial Gaúcho (RS) |
| SII | Safe In India Foundation |
| SIL | Special Import License |
| SIM | School of International Management |
| SIMA | Special Import Measures Act |
| SITC | Standard International Trade Classification |
| SKAF | Sai Krishna Agro Foods |
| SKAV | Sai krishna Agro Vet |
| SL | Steel Lord |
| SLC | Standard Local Currency |
| SLC | Standard Local Currency: See also 'FAO' statistics: |
| SLCD | Sri Lankan Coimbatore domestic flights |
| SLI | Shippers Letter of Instruction |
| SLIDA | Sri Lanka Institute of Development Administration |