| OIT | Office of International Trade | 国际贸易局 |
| OIT | Object Identifier Tree | 目标标识符树 |
| OIT | Oita, Japan - Oita (Airport Code) | 大分,日本-大分(机场代码) |
| OIT | Office Of Information Technologies | 信息技术办公室 |
| OIT | Old Indian Trick | 印度老把戏 |
| OIT | Office of Industrial Technologies -- Department of Energy | 工业技术办公室——能源部 |
| OIT | Oita, Japan | 日本大分 |
| OIT | Occult Institute of Technology | 神秘技术学院 |
| OIT | organic integrity test | 有机完整性试验 |
| OIT | osteogenesis imperfecta tarda | 成骨发育迟缓 |
| OIT | Operator Information Telex (Airbus Industrie) | 运营商信息电报(空客工业) |
| OIT | OrganizaciÓn Internacional del Trabajo (Spanish: International Labor Organization) | OrganizaciÓn Internacional del Trabajo (Spanish: International Labor Organization) |
| OIT | Onboard Information Terminal | 车载信息终端 |
| OIT | Oxidation Induction Time | 氧化诱导时间 |
| OIT | Oregon Institute of Technology | 俄勒冈理工学院 |
| OIT | Office of Instructional Technology | 教学技术办公室 |
| OIT | Operator Interface Terminal | 操作员接口终端 |
| OIT | Object Identifier Tree (MIB) | 对象标识符树(MIB) |
| OIT | Old Italian | 古意大利语 |
| OIT | Oxidation Induction Temperature | 氧化诱导温度 |
| OIT | Office of Information Technology | 信息技术办公室 |
| OIT | Opryland International Travel | Opryland国际旅行社 |
| OIT | Optical Imaging Technology | 光学成像技术 |
| OIT | Office of Industrial Technologies | 工业技术办公室 |
| OIT | Optical Image Technology, Inc. | 光学图像技术公司。 |
| OIT | Organisation Internationale du Travail (International Labour Organization) | 国际劳工组织 |
| OIT | Officer in Training | 培训官员 |