| PSST | Palm Society of South Texas | 南得克萨斯州棕榈协会 |
| PSST | Philippino Students Stand Together | 菲律宾学生站在一起 |
| PSST | Plato Support Services Tip | 柏拉图支持服务提示 |
| PSST | Physician Satisfaction Stat Team | 医生满意度统计团队 |
| PSST | Photoshop Secrets and Tips (website) | Photoshop秘诀和提示（网站） |
| PSST | Plasma Sources Science and Technology | 等离子源科学与技术 |
| PSST | Public Service Staffing Tribunal | 公共服务人员配置法庭 |
| PSST | Partners in Supporting Science, Maths and Technology | 支持科学、数学和技术的合作伙伴 |
| PSST | Pressure Sore Status Tool | 压力传感器状态工具 |
| PSST | Personal Safety Success Training | 个人安全成功培训 |
| PSST | Penn State Street Tuners | 宾夕法尼亚州大街调谐器 |
| PSST | Planet Search Survey Telescope | 行星搜索巡天望远镜 |
| PSST | Personal Security System | 个人安全系统 |
| PSST | Practicing Safer Sex Today | 今天练习更安全的性爱 |
| PSST | Probabilistic Sequence Search Tool | 概率序列搜索工具 |
| PSST | Penrose Super Squad for Teens | Penrose青少年超级小队 |
| PSST | Public Safety Sales Tax | 公共安全销售税 |
| PSST | Protecting Surrey Schools Together | 一起保护萨里学校 |
| PSST | Programmable Soundscape Toy | 可编程Soundscape玩具 |
| PSST | Photonics Simulation Software For Teaching | 用于教学的光子学模拟软件 |
| PSST | Python Snippet Support Team | Python代码段支持团队 |
| PSST | Professionally Speaking Singles Toastmasters | 专业演讲单身演讲会 |