| 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) |