| Term | Full Form | Category |
|---|---|---|
| HIU | Headset Interface Unit | Others |
| HIU | Health Insurance Underwriter | Others |
| HIU | Health Insurance Unit | Others |
| HIU | Heart Investigation Unit | Others |
| HIU | Heat Interface Unit | Others |
| HIU | Helmholtz Institut Ulm | Others |
| HIU | High Intensity Ultrasound | Others |
| HIU | Hope International University | Others |
| HIU | House In Use | Others |
| HIU | Humanitarian Information Unit | Others |
| HIU | Hydraulic Interface Unit | Others |