| HFL | High Fuel Level | 燃油油位高 |
| HFL | Hardware Design Using Functional Languages (workshop) | 使用功能语言的硬件设计（研讨会） |
| HFL | High Frequency Laughter | 高频笑声 |
| HFL | Human Fetal Lung | 人胎肺 |
| HFL | Highly Flammable Liquid | 高度易燃液体 |
| HFL | High Frequency Line | 高频线路 |
| HFL | Helium Fill Line | 氦填充线 |
| HFL | Hard Fast and Loud (band) | 硬-快-大声（乐队） |
| HFL | Hundred-Fold-Life | 百倍寿命 |
| HFL | Herbie Fully Loaded (movie) | 赫比满载而归（电影） |
| HFL | High Frequency Laser | 高频激光器 |
| HFL | Healthy For Life | 终身健康 |
| HFL | high-frequency lesions | 高频损伤 |
| HFL | Holland Florin (currency of the Netherlands; old style) | 荷兰弗洛林（荷兰货币；旧式） |
| HFL | High Frequency Lysogenization | 高频溶出 |
| HFL | Hydraulic Flying Lead (Oil & Gas) | 液压油和天然气铅(飞行) |
| HFL | Harmonie-Fanfare de Lamastre | 拉马斯特和谐歌舞团 |