| PDSI | Palmer Drought Severity Index | 帕尔默干旱严重指数 |
| PDSI | Physical Disabilities & Sensory Impairment | 物理的残疾和感官上的障碍 |
| PDSI | Pinnacle Data Systems Inc (Columbus, Ohio) | Pinnacle Data Systems Inc（俄亥俄州哥伦布） |
| PDSI | Professional Development Skill Identifier | 专业发展技能标识符 |
| PDSI | Proved Developed Shut In (hydrocarbon reserves) | 探明已开发关井（油气储量） |
| PDSI | Project Development Skill Identifier | 项目开发技能标识符 |