| GIO | Government Insurance Office (Australia) | 政府保险办公室（澳大利亚） |
| GIO | General Insurance Ombudservice | 一般保险监察员 |
| GIO | gas identification officer | 气体鉴定官 |
| GIO | Game Interaction Object | 游戏交互对象 |
| GIO | Guaranteed Insurability Option (life insurance) | 保证保险选项（人寿保险） |
| GIO | GiovedÌ (Italian: Thursday) | GiovedÌ (Italian: Thursday) |
| GIO | Glucocorticoid Induced Osteoporosis | 糖皮质激素诱导的骨质疏松症 |
| GIO | Government Information Online | 政府信息在线 |
| GIO | Gymnazium Ivana Olbrachta (Semily, CZ, high school) | Ivana Olbrachta体育馆（塞米利，捷克，高中） |
| GIO | Geographic Information Officer | 地理信息干事 |
| GIO | Government Information Office | 政府新闻办公室 |
| GIO | Get It On | 穿上它 |