| MAOA | Minority Apartment Owners Association (Los Angeles, CA) | 少数族裔公寓业主协会（加利福尼亚州洛杉矶） |
| MAOA | Mid-Atlantic Opel Association | 中大西洋欧宝协会 |
| MAOA | Mid-America Orthopaedic Association | 中美洲骨科协会 |
| MAOA | Michigan Association for Openness in Adoption | 密歇根收养开放协会 |
| MAOA | MSE Acceptance Operation Agreement | MSE验收操作协议 |
| MAOA | Multi-AOR Operating Area (Ballistic Missile Defense System) | 多AOR作战区（弹道导弹防御系统） |
| MAOA | methaqualone | 甲喹酮 |
| MAOA | Panel on Meteorological Aspects of Ocean Affairs | 海洋事务气象问题小组 |
| MAOA | Meteorological Aspects of Ocean Affairs | 海事气象 |
| MAOA | Monoamine Oxidase A | 单胺氧化酶A |