| IDOT | Iowa Department of Transportation | 爱荷华州交通部 |
| IDOT | Innovative Design Optimization Technology (Korea) | 创新设计优化技术（韩国） |
| IDOT | Indiana Department of Transportation | 印第安纳州交通部 |
| IDOT | Indemnity Deed of Trust | 信托赔偿契约 |
| IDOT | Initial Defense Of Texas | 德克萨斯州初始防御 |
| IDOT | Illinois Department of Transportation | 伊利诺伊州交通部 |
| IDOT | Internet Development Outreach and Technology | 互联网发展外联与技术 |
| IDOT | International Delivery On Time | 国际按时交货 |