| Acronym | Definition |
|---|
| TSPI➣Time-Space-Position Information |
| TSPI➣Thames Society of Paranormal Investigations (Connecticut) |
| TSPI➣Telephony Service Provider Interface |
| TSPI➣Tulay Sa Pag-Unlad, Inc. |
| TSPI➣To Complete Schedule Performance Indicator (project management) |
| TSPI➣Introductory Team Software Process (Software Engineering Institute) |
| TSPI➣Technology Service Partners, Inc. |
| TSPI➣Tactical Solution Partners, Inc. (UK) |
| TSPI➣Training, Simulation and Performance Improvement |
| TSPI➣Toe Systolic blood Pressure Index |
| TSPI➣Tomsk State Pedagogical Institute (Hungary) |
| TSPI➣Tsukiden Software Philippines, Inc. (Pasig City, Philippines) |
| TSPI➣Temporal Speckle Pattern Interferometry |
| TSPI➣Tribal Sovereignty Protection Initiative |
| TSPI➣Telecommunication Services Price Index |
| TSPI➣Transaction Service Provider Interface |
| TSPI➣Time-bound Self-Purging Indicator |
| TSPI➣Temperate Sorter Preference Indicator |
| TSPI➣Topeka Storage Pool, Inc. |
| TSPI➣Total Suspended Particulate Inlet |