English abbreviations from top to tor
- TOP (Total Obscuring Power)
- TOPAS (Transporter Obrneny Pasovy)
- TOPGUN (United States Navy Fighter Weapons School)
- TOPINT (Technical Operational Intelligence)
- TOPMIS (Total Officer Personnel Management Information System)
- TOPPSS (Transportation Operational Personal Property Standard System)
- TOPS ((meeting) Toward Other Planetary Systems, a series of educational astronomy workshops)
- TOPSA (Taxonomy of formally-defined Orthogonal Properties of Software Architectures)
- TOPSS (The Officer Projection Specialty System)
- TOQ (The Occidental Quarterly)
- TOR (Tema Oil Refinery)
