| SAPI | Small Arms Protective Insert | 防破片衣前后的附加防弹板的正式名称 |
| SAPI | Sales Association of the Paper Industry | 造纸行业销售协会 |
| SAPI | Surfing Association of the Philippine Islands | 菲律宾群岛冲浪协会 |
| SAPI | Speech Application Programming Interface | 语音应用程序编程接口 |
| SAPI | Service Access Point Identifier | 服务接入点标识符 |
| SAPI | Server Application Programming Interface | 服务器应用程序编程接口 |
| SAPI | special access program for intelligence (US DoD) | 情报特别访问计划(美国国防部) |
| SAPI | Systems Approach to Process Improvement (MPSI) | 过程改进的系统方法(MPSI) |
| SAPI | Standard Application Program Interface | 标准应用程序界面 |
| SAPI | Small Arms Protective Inserts (body armor plates) | 小武器防护插件(车身装甲板) |
| SAPI | Speech Application Programming Interface (Microsoft & Unisys) | 语音应用编程接口(微软和Unisys) |
| SAPI | Small Arms Protection Inserts | 小武器保护插件 |