| NPO | Next Planet Over | 下一个星球结束 |
| NPO | New Personnel Orientation | 新员工培训 |
| NPO | Nangapinoh, Indonesia | 印度尼西亚Nangapinoh |
| NPO | Naval Project Office | 海军项目办公室 |
| NPO | National Preservation Office | 国家保护办公室 |
| NPO | Non Profit Organization | 非营利组织 |
| NPO | Nil Per Os - Nothing By Mouth | 零Per Os-无任何口服 |
| NPO | naphthyl-phenyl-oxazole | 萘基苯基恶唑 |
| NPO | Neighborhood Preservation Ordinance | 《邻里保护条例》 |
| NPO | non per os | 非按操作系统 |
| NPO | Natalie Portman Obsessives | 娜塔莉·波特曼沉迷 |
| NPO | EnPro Industries, Inc. | EnPro工业公司。 |
| NPO | preoptic nucleus | 视前核 |
| NPO | Nicastro Piscopo Ogrin, Attorneys at Law | Nicastro Piscopo Ogrin,律师 |
| NPO | Nil Per Os | 无每O |
| NPO | Nu Phunk Operation | Nu Phunk运营 |
| NPO | Network Performance Objectives (ITU-T) | 网络性能目标(ITU-T) |
| NPO | Navy Purchasing Office | 海军采购处 |
| NPO | National Program Office(r) | 国家计划办公室(r) |
| NPO | New Polar Order (Cybernations Alliance) | 新极地秩序(网络国家联盟) |
| NPO | Nederlandse Publieke Omroep (Dutch public broadcasting system) | 荷兰公共广播系统 |
| NPO | New Pacific Order (Cybernation alliance) | 新太平洋秩序(网络国家联盟) |
| NPO | Naval Petroleum and Oil Shale Reserves | 海军石油和油页岩储量 |
| NPO | Non-Product Output | 非产品输出 |
| NPO | National Public Health Officer | 国家公共卫生官员 |
| NPO | Non Per Os (Latin: Nothing by Mouth) | Non-Per-Os(拉丁语:Nothing by Mouth) |
| NPO | Nil Per Os (Latin: Nothing by Mouth) | Nil Per-Os(拉丁语:Nothing by Mouth) |
| NPO | National Public Observatory (Radium Springs, NM) | 国家公共天文台(Radium Springs,NM) |
| NPO | Navy Program Objective | 海军项目目标 |
| NPO | Non-Profit Organization | 非营利组织 |
| NPO | Nulla Per Os (Latin: Nothing By Mouth, also Non/Nil Per Os) | 每个操作系统(拉丁文Nulla:没什么,也非/零每个操作系统) |
| NPO | Nucleus Preopticus | 视前核 |
| NPO | NWTS Program Office (US DOE) | NWTS项目办公室(美国能源部) |
| NPO | Nurses Professional Organization | 护士专业组织 |
| NPO | National Productivity Organization | 国家生产力组织 |
| NPO | National Platform Operations (Sprint) | 国家平台运营(Sprint) |