| SIDA | Sudden Infant Death Association (Australia) | 婴儿猝死协会（澳大利亚） |
| SIDA | sudden infant death association | 婴儿猝死协会 |
| SIDA | Syndrome Imagined to Discourage Amour | 令人沮丧的综合征 |
| SIDA | Syndrome ImmunodÉficitaire Acquis | Syndrome ImmunodÉficitaire Acquis |
| SIDA | SÍndrome de InmunoDeficiencia Adquirida | SÍndrome de InmunoDeficiencia Adquirida |
| SIDA | SÍndroma da Imuno-DeficiÊncia Adquirida (Portuguese: Acquired Immune Deficiency Syndrome) | SÍndroma da Imuno-DeficiÊncia Adquirida (Portuguese: Acquired Immune Deficiency Syndrome) |
| SIDA | Swedish International Developmental Agency | 瑞典国际开发署 |
| SIDA | Sensing, Interpreting, Deciding, and Acting | 感知、解释、决定和行动 |
| SIDA | Swedish International Development Authority | 瑞典国际开发局 |
| SIDA | Syndrome d'Immuno-Deficience Acquis (French: Acquired Immune Deficiency Syndrome) | 'Immuno-Deficience综合症(法国Acquis d获得性免疫缺陷综合征) |
| SIDA | Sindh Irrigation and Drainage Authority (Pakistan) | 信德省灌溉和排水管理局（巴基斯坦） |
| SIDA | Secure Identification Display Area | 安全标识显示区 |
| SIDA | Sindrome da Immuno-Deficienza Acquisita (Italian: Acquired Immune Deficiency Syndrome) | Sindrome da Immuno Deficiza Acquisita（意大利语：获得性免疫缺陷综合征） |
| SIDA | Swedish International Development Cooperation Agency | 瑞典国际发展合作署 |
| SIDA | Swedish International Development Agency | 瑞典国际开发署 |
| SIDA | SÍndrome de Inmunodeficencia Adquirida (Spanish: Acquired Immune Deficiency Syndrome) | SÍndrome de Inmunodeficencia Adquirida (Spanish: Acquired Immune Deficiency Syndrome) |
| SIDA | systemic inflammatory disease | 全身炎症性疾病 |
| SIDA | Security Identification Display Area (FAA) | 安全标识显示区（FAA） |
| SIDA | severe iron deficiency anemia | 严重缺铁性贫血 |
| SIDA | SÍndrome d'ImmunodeficiÈncia Adquirida (AIDS) | SÍndrome d'ImmunodeficiÈncia Adquirida (AIDS) |
| SIDA | Sensing, Interpreting, Deciding and Acting | 感知、解释、决定和行动 |
| SIDA | suggested indication of diagnosis | 建议诊断指征 |
| SIDA | SÍndrome de Inmuno-Deficiencia Adquirida | SÍndrome de Inmuno-Deficiencia Adquirida |