| SDSD | San Diego Sheriff's Department | 圣地牙哥郡的部门 |
| SDSD | Senior and Disabled Services Division | 老年和残疾人服务部 |
| SDSD | South Dakota School of the Deaf (Sioux Falls, SD) | 南达科他州聋人学校（苏福尔斯，SD） |
| SDSD | Secure Digital Storage Device | 安全数字存储设备 |
| SDSD | Software Development Standards Description | 软件开发标准描述 |
| SDSD | Soft Decision-Symbol Distribution | 软决策符号分布 |
| SDSD | Staff Development Services Department | 员工发展服务部 |
| SDSD | Sabun Ve Deterjan Sanayicileri Dernegi (Turkish union of soaps and detergents) | Sabun Ve Deterjan Sanaycileri Dernegi（土耳其肥皂和洗涤剂联合会） |