TCII
| Acronym | Definition |
|---|---|
| TCII | Transcobalamin II |
| TCII | Technical Committee on Intelligent Informatics |
| TCII | Technical Committee on Information Infrastructure (IEEE) |
| TCII | TCI International, Inc. (stock symbol) |
| TCII | Time Crisis II (game) |
| TCII | Telecom Consultants International, Inc. |
| TCII | Trade Consultants International Inc. |
| TCII | Tien Chien II (missile) |
| TCII | Tactical Command Industries, Inc. |