TDIS
| Acronym | Definition |
|---|---|
| TDIS | Total Dissolved Inorganic Solids |
| TDIS | Timely Discharge Information System (healthcare) |
| TDIS | Time Distance |
| TDIS | Travel Document Issuance System (US Department of State) |
| TDIS | Thoroughbred Direct Intermodal Services, Inc (Plymouth Meeting, Pennsylvania transportation company) |
| TDIS | Training Development Information System |
| TDIS | Test Documentation Information System |
| TDIS | Test Data Information System |
| TDIS | Toronto Dominion Investment Services, Inc. (Canada) |