| HFG | heavy free gas | 重自由气体 |
| HFG | Hinteregger, Fukai and Gilson Solar EUV Model | Hintereger、Fukai和Gilson太阳能EUV模型 |
| HFG | Harmonic Frequency Generator | 谐波频率发生器 |
| HFG | Hand-Foot-Genital syndrome | 手足生殖器综合征 |
| HFG | Home Friendship Groups (Christian-based small group ministry) | 家庭友好团体（基督教小团体事工） |