| SSN | season | 季节 |
| SSN | Sub-System Number | 子系统号 |
| SSN | Space Surveillance Network | 空间监视网络 |
| SSN | Station Serial Number | 工作站序列号 |
| SSN | Smoothed Sunspot Number | 平滑太阳黑子数 |
| SSN | Sprint Service Node | Sprint服务节点 |
| SSN | SoluciÓn Salina Normal (Spanish) | SoluciÓn Salina Normal (Spanish) |
| SSN | Segment Serial Number | 段序列号 |
| SSN | Severely Sub-Normal | 严重低于正常值 |
| SSN | Submarine, Submarine, Nuclear | 潜艇、潜艇、核潜艇 |
| SSN | Soldier Support Network | 士兵支持网络 |
| SSN | Submarine Submarine Nuclear ( Nuclear powered attack Submarine) | 潜艇核潜艇（核动力攻击潜艇） |
| SSN | Sonus Corporation | Sonus公司 |
| SSN | Semantic Social Network | 语义社交网络 |
| SSN | Subsystem Number (SS7) | 子系统编号（SS7） |
| SSN | Suprasternal Notch (anatomy) | 胸骨上切口（解剖学） |
| SSN | Specification Serial Number | 规格序列号 |
| SSN | Swept Spot Noise | 扫描点噪波 |
| SSN | System Sequence Number | 系统序列号 |
| SSN | Significant Support Needs | 重大支持需求 |
| SSN | Sales Sequenced Number | 销售序列号 |
| SSN | Nuclear-powered Attack Submarine (Submarine, Submarine, Nuclear) | 核动力攻击潜艇（潜艇、潜艇、核潜艇） |
| SSN | Social Safety Net | 社会安全网 |
| SSN | Servizio Sanitario Nazionale (Italian Health Service) | Servizio Sanitario Nazionale（意大利卫生服务） |
| SSN | Sub-Surface Navigation | 子曲面导航 |
| SSN | Submersible Ship Nuclear | 核潜艇 |
| SSN | Sense Selection Network (natural language processing) | 感官选择网络（自然语言处理） |
| SSN | Attack Submarine (Nuclear Propulsion) | 攻击潜艇（核推进） |
| SSN | Silicon Serial Number | 硅序列号 |
| SSN | Social Security Number | 社会保障号码 |
| SSN | Streaming Sports Network, LLC (Ottawa, Canada) | 流媒体体育网络有限责任公司（加拿大渥太华） |
| SSN | SafeSeaNet (vessel traffic monitoring and information system) | SafeSeaNet（船舶交通监控和信息系统） |
| SSN | Ship, Submersible, Nuclear | 核潜水船 |
| SSN | Simultaneous Switching Noise | 同时切换噪声 |
| SSN | Standard Study Number | 标准研究编号 |
| SSN | Secure Server Network | 安全服务器网络 |
| SSN | System Study Number | 系统研究编号 |
| SSN | Switched Service Network | 交换服务网络 |
| SSN | Synchronous Sequential Network | 同步顺序网络 |
| SSN | Subscriber Sequence Number | 用户序列号 |