| MPSI | Meeting Planner Satisfaction Index | 会议策划人满意度指数 |
| MPSI | Martin Process Solutions, Inc. | 马丁过程解决方案公司。 |
| MPSI | M P S I Systems, Inc. | M P S I系统公司。 |
| MPSI | male procreative superiority index | 男性生殖优势指数 |
| MPSI | Multi-Problem Screening Inventory | 多问题筛选清单 |
| MPSI | Member of the Pharmaceutical Society of Ireland | 爱尔兰药学会会员 |
| MPSI | MacLean Photographic & Sporting Images | 摄影及运动图像 |