| Acronym | Definition |
|---|
| HCU | Home Computer User |
| HCU | Hydraulic Control Unit |
| HCU | Heritage Credit Union |
| HCU | Heavy Conversion Unit |
| HCU | High Care Unit (hospitalization) |
| HCU | Hyderabad Central University (India) |
| HCU | Hydrocracker Unit (refinery) |
| HCU | Hariri Canadian University (Lebanon) |
| HCU | Hindu Credit Union |
| HCU | Harbor Clearance Unit |
| HCU | Harmonic Correction Unit (Eaton) |
| HCU | Hydraulic Charging Unit |
| HCU | High-capacity Computer Unit |
| HCU | Hand-held Control Unit |
| HCU | Hard Copy Unit |
| HCU | Helicopter Control Unit |
| HCU | Halifax County United Soccer Club |
| HCU | Hard Copy Utility |
| HCU | Hard Coal Unit |
| HCU | Hand-held Computer Unit |
| HCU | Hand-Held Communication Unit |