| FAV | Favorable | 有利的 |
| FAV | felineataxia virus | 猫科动物嗜热病毒 |
| FAV | Foveal Avascular Zone (ophthalmology) | 中心静脉无血管区（眼科） |
| FAV | fowl adenovirus | 禽腺病毒 |
| FAV | Full Audio Visual (device) | 全视听（设备） |
| FAV | Fakarava, Tuamotu Island | 图阿莫图岛法卡拉瓦 |
| FAV | Fast Attack Vehicle | 快速攻击车辆 |
| FAV | Family Assault Vehicle | 家庭攻击车 |
| FAV | Fuerza AÉrea Venezolana (Venezuelan Air Force) | Fuerza AÉrea Venezolana (Venezuelan Air Force) |
| FAV | Final Acute Value (water pollution analysis) | 最终急性值（水污染分析） |
| FAV | Fully Armored Vehicle | 全装甲车辆 |
| FAV | Favorite | 最喜欢的 |
| FAV | Formula Asset Value | 公式资产价值 |
| FAV | Fruits And Vegetables (growers, farmers) | 水果和蔬菜（种植者、农民） |
| FAV | Facilities Assessment Visit | 设施评估访问 |
| FAV | First Article Verification | 首件验证 |
| FAV | MicroSoft Outlook Favorites shortcut file | MicroSoft Outlook收藏夹快捷方式文件 |