| SDFA | Swiss Duty Free Association | 瑞士免税协会 |
| SDFA | Saskatchewan Dried Flower Association (Canada) | 萨斯喀彻温省干花协会（加拿大） |
| SDFA | Sarhad Dairy Farmers Association | 萨哈德奶农协会 |
| SDFA | San Diego Floral Association (California) | 圣地亚哥花卉协会（加利福尼亚州） |
| SDFA | San Dieguito Faculty Association (California) | San Dieguito教师协会（加利福尼亚州） |
| SDFA | San Diego Faculty Association | 圣地亚哥教师协会 |
| SDFA | Scottsdale Dog Fanciers Association | 斯科茨代尔犬迷协会 |
| SDFA | Shoalhaven Defence Families Association | Shoalhaven防御家庭协会 |
| SDFA | Scottish District Families Association | 苏格兰地区家庭协会 |
| SDFA | Service Dogs For America | 美国服务犬 |
| SDFA | Students for a Drug-Free America | 无毒品美国的学生 |
| SDFA | San Diego First Assembly of God | 圣地亚哥第一次上帝大会 |
| SDFA | State Drug and Food Administration | 国家药品和食品管理局 |
| SDFA | Stepwise Discriminant Function Analysis | 逐步判别函数分析 |
| SDFA | Seminole Dog Fanciers Association, Inc. (Florida) | Seminole Dog Fanciers Association，Inc.（佛罗里达州） |
| SDFA | Same Direction Forward Adaptation | 同向前向自适应 |
| SDFA | Sperm DNA Fragmentation Assay (Repromedix) | 精子DNA片段分析（Repromedix） |
| SDFA | School Distrct of Fort Atkinson (Wisconsin) | 阿特金森堡学区（威斯康星州） |
| SDFA | Signed-Digit Full Adder | 有符号数字全加符 |
| SDFA | Stateless Data-Flow Architecture | 无状态数据流体系结构 |
| SDFA | Semiempirical Density Functional Approach | 半经验密度泛函方法 |
| SDFA | Serviço de Documentação da Força AÉrea | Serviço de Documentação da Força AÉrea |
| SDFA | Special District Financing Administration, LLC | 特区金融管理有限责任公司 |
| SDFA | Simplified Density Functional Approach | 简化密度泛函方法 |
| SDFA | Shinnar, Dressler, Feng and Avidan | Shinnar、Dressler、Feng和Avidan |
| SDFA | Speech Driven Facial Animation | 语音驱动的面部动画 |
| SDFA | Stochastic Deterministic Finite Automata | 随机确定性有限自动机 |
| SDFA | Sistemas de Duas Fases Aquosas | Duas Fases Aquosas系统 |