| NSO | National Statistical Office | 国家统计局 |
| NSO | National Solar Observatory | 国家太阳观测站 |
| NSO | Non-Subscriber Order | 非订户订单 |
| NSO | National Statistics Office (Philippines) | 国家统计局(菲律宾) |
| NSO | Nuclear Safety Officer | 核安全军官 |
| NSO | North Sydney Oval | 北悉尼椭圆形 |
| NSO | Normal Sustained Operations | 正常持续运行 |
| NSO | Nonferrous Smelter Order | 有色冶炼厂订单 |
| NSO | Nevada Site Office | 内华达州现场办公室 |
| NSO | National Security Office(r) | 国家安全办公室(r) |
| NSO | National Symphony Orchestra | 国家交响乐团 |
| NSO | supraoptic nucleus | 视上核 |
| NSO | Newfoundland Symphony Orchestra (Canada) | 纽芬兰交响乐团(加拿大) |
| NSO | Navy Supply Officer | 海军补给官 |
| NSO | Naval Staff Officer | 海军参谋 |
| NSO | Non-SIOP Option | 非SIOP选项 |
| NSO | Natural Spin Orbital(s) | 自然自旋轨道 |
| NSO | Navy Subsistence Office | 海军给养处 |
| NSO | Nederlands Studenten Orkest (Dutch: Netherlands Student Orchestra) | 荷兰学生Orkest(荷兰语:荷兰学生乐团) |
| NSO | NATO Standardization Organization | 北约标准化组织 |
| NSO | Nederlands Studenten Orkest | 荷兰学生奥克斯特 |
| NSO | New Spam Order | 新建垃圾邮件订单 |
| NSO | National Scout Organization | 国家童军组织 |
| NSO | Nurse Service Organization | 护士服务组织 |
| NSO | New Students Orientation | 新生入职培训 |
| NSO | National Security Override | 国家安全覆盖 |
| NSO | Scone, New South Wales, Australia | 斯科内,新南威尔士州,澳大利亚 |
| NSO | NStor Technologies, Inc. | NStor技术公司。 |
| NSO | Sotho, Northern | 索托,北部 |
| NSO | Nurses Service Organization (liability insurance company) | 护士服务组织(责任保险公司) |
| NSO | New Student Outreach | 新学生外联 |
| NSO | Numeric Stockage Objective | 数字库存目标 |
| NSO | Neutral Start Output | 空档起动输出 |
| NSO | neosporin ointment | 新孢霉素软膏 |
| NSO | Nuclear Support Office | 核支持办公室 |
| NSO | Non-Standard Option | 非标准选项 |
| NSO | Neighbourhood Support Officer | 邻里支援主任 |
| NSO | Non-Streaming Overhead | 非流式处理开销 |
| NSO | National Census and Statistics Office (Philippines) | 国家人口普查和统计局(菲律宾) |
| NSO | Nuclear Safe Orbit | 核安全轨道 |
| NSO | Network Systems & Operations | 网络系统和操作 |
| NSO | Non Standard Operation | 非标准操作 |
| NSO | Network Security Officer | 网络安全官 |
| NSO | New Student Orientation | 新学生入职培训 |
| NSO | National Safeman's Organization | 国家Safeman的组织 |
| NSO | National Sales Organizations | 全国销售组织 |
| NSO | Nail Solution for Onychomycosis | 甲真菌病指甲液 |
| NSO | Nonqualified Stock Option | 非限定股票期权 |
| NSO | Northern Spotted Owl | 斑点鸮 |