| Rank | Abbreviation | Meaning |
|---|
| ***** | SPIA | Single Premium Immediate Annuity
| |
| **** | SPIA | Scanner Power Interface Assembly
| |
| *** | SPIA | Soldiers of Peace International Association
| |
| *** | SPIA | sol particle agglutination immunoassay
| |
| ** | SPIA | School of Public and International Affairs
| |
| ** | SPIA | Standards Profile for Imagery Access
| |
| * | SPIA | Security and Privacy Impact Assessment
| |
| * | SPIA | Scandinavian Photovoltaic Industry Association
| |
| * | SPIA | South Pacific Island Airways
| |
| * | SPIA | State Professional Inspection Authority
| |
| * | SPIA | solid phase immunobead assay
| |
| * | SPIA | Standard Profile for Imagery Archives
| |
| * | SPIA | Standard Payload Integration Agreement
| |
| * | SPIA | Single Peak Intensity Analysis
| |
| * | SPIA | Small Payload Interface Adapter
| |
| * | SPIA | sol particle immuno assay
| |
| * | SPIA | Special Purpose Investment Account
| |
| * | SPIA | solid-phase immunofiltration assay
| |
| * | SPIA | Stedelijk Polytechnisch Instituut Antwerpen
| |
| * | SPIA | Sol particle immunoassay
| |
| * | SPIA | Singapore Plastic Industry Association
| |
| * | SPIA | Solid Propellant Information Agency
| |
| * | SPIA | Single Premium Immediate Annuities
| |
| * | SPIA | SNP Panel Identification Assay
| |
| * | SPIA | Somatic Psychotherapy Institute of Australia
| |