| IG | Inspector General | 监察长[主任] |
| IG | Internet Gateway | 互联网门户 |
| IG | immunoglobulin | 免疫球蛋白 |
| IG | Inertial Guidance | 惯性制导 |
| IG | Indo-Germanic | 印欧语系(的) |
| IG | IGnition | 点火燃烧 |
| IG | Interactive Graphics | 交互式图形 |
| IG | International Gateway | 国际网关 |
| IG | Inscriptiones Graecae (definitive collection of ancient manuscripts) | 铭文Graecae(古代手稿的权威收藏) |
| IG | Igloo (pressurized and thermally controlled environment for Spacelab pallet subsystems) | Igloo(太空实验室托盘子系统的加压和热控制环境) |
| IG | Interdepartmental Group | 部际小组 |
| IG | In Game (online gaming) | 游戏内(在线游戏) |
| IG | Infidelguy (website) | Infidelguy(网站) |
| IG | Irish Guards (A British Regiment) | 爱尔兰卫队(英国军团) |
| IG | Interagency Group | 局际小组 |
| IG | Illumined Gaming (message board) | 虚幻游戏(留言板) |
| IG | Instructor in Gunnery (Canadian and British Military) | 射击教练(加拿大和英国军事) |
| IG | Income Generation | 创收 |
| IG | Inherently Governmental | 固有政府性质 |
| IG | Interglide (Shimano Chain and Cogs) | Interglide(岛野链条和齿) |
| IG | IndyGo (mass transit company) | IndyGo(大众运输公司) |
| IG | Interconnecting Group | 互连组 |
| IG | Inner Guard (Masonry) | 内护板(砌体) |
| IG | Im Generalstab (German: General-Staff Member) | Im Generalstab(德语:总参谋) |
| IG | Inspector Gadget (cartoon) | Gadget探长(卡通) |
| IG | Inverse Gain | 反向增益 |
| IG | Interoperability Group | 互操作性组 |
| IG | Image Generator | 图像生成器 |
| IG | Interactive Glide | 交互式滑翔 |
| IG | Instance Generator | 实例生成器 |
| IG | Insulated Grounding | 绝缘接地 |
| IG | Inner Geometry | 内部几何图形 |
| IG | International Gymnast | 国际体操运动员 |
| IG | Investors Gold | 投资者黄金 |
| IG | Internal Globulin | 内球蛋白 |
| IG | IntelliGenetics | 智能遗传学 |
| IG | Interessen Gemeinschaft | Interessen Gemeinschaft公司 |
| IG | Infinitesimally Generating | 无限小生成 |
| IG | Imperial Glass | 帝国玻璃 |
| IG | Inverse Gamma | 逆Gamma |
| IG | Image Galleries | 图片库 |
| IG | Information Goddess | 信息女神 |
| IG | Idea Generator | 创意生成器 |
| IG | In Game | 在游戏中 |
| IG | IGI, Inc. | IGI公司。 |
| IG | In Genre | 在流派中 |
| IG | Indian Goverment | 印度政府 |
| IG | Insert Graphic | 插入图形 |
| IG | InspectorÍa General (Guatemala special police division) | InspectorÍa General (Guatemala special police division) |
| IG | I Guess | 我猜是吧 |
| IG | Instructor Guide | 教官指南 |
| IG | Immunoglobin | 免疫球蛋白 |
| IG | Induction Generator | 感应发电机 |
| IG | Insulating Glass | 绝缘玻璃 |
| IG | Interest Group | 利益集团 |
| IG | iGoogle (personalized Google homepage) | iGoogle(个性化谷歌主页) |
| IG | Isolated Ground | 隔离接地 |
| IG | Immune Globulin | 免疫球蛋白 |
| IG | Investment Grade | 投资等级 |
| IG | Interface Group | 接口组 |
| IG | Index-Linked Gilts (finance) | 指数挂钩债券(金融) |
| IG | Islamic Group | 伊斯兰集团 |
| IG | Information Granulation | 信息粒度 |
| IG | immunoreactive human gastrin | 免疫反应性人胃泌素 |
| IG | Interglobal | Interglobal公司 |
| IG | intragastric | 胃内的 |
| IG | Insulated Gate | 绝缘闸门 |
| IG | Insulated Glass | 隔热玻璃 |
| IG | Integrated Gearing | 集成齿轮传动 |
| IG | Imperial Guard | 帝国护卫队 |
| IG | InstrucciÓn General | InstrucciÓn General |
| IG | Index Generation | 索引生成 |
| IG | intestinal ganglioneuromatosis | 肠神经节细胞瘤病 |
| IG | Ideal Gas | 理想气体 |
| IG | intraglossal | 舌内的 |
| IG | Ice Gun | 冰枪 |
| IG | idiopathic glomerulonephritis | 特发性肾小球肾炎 |
| IG | Inert Gas | 惰性气体 |
| IG | interchromatin granule | 间色质颗粒 |
| IG | Information Gain | 信息增益 |
| IG | icterogram | 黄疸图 |
| IG | Identity Group | 身份组 |
| IG | immature granule | 未成熟颗粒 |
| IG | Input Grammar | 输入语法 |
| IG | insulin-glucagon | 胰岛素胰高血糖素 |
| IG | Imperial Games (gaming fansite network) | 帝国运动会(游戏粉丝网络) |
| IG | Intelligence Group | 情报小组 |
| IG | Ilford (postcode, United Kingdom) | 伊尔福德(邮政编码,英国) |
| IG | Infogrames (European software company) | Infogrames(欧洲软件公司) |
| IG | Italian Greyhound | 意大利格雷伊猎犬 |
| IG | Industriegewerkschaft (Industrial Labor Union) | 工业工会 |
| IG | InterGOV International | InterGOV国际 |
| IG | Instituto GeofÍsico | Instituto GeofÍsico |
| IG | Installation Guide | 安装指南 |
| IG | Imperial Guard (game) | 帝国护卫队(游戏) |
| IG | Institute of Genetics (Canada) | 遗传学研究所(加拿大) |
| IG | Investors Group | 投资者集团 |
| IG | Implementation Guide | 实施指南 |