| TRAIN | Taking Realtime Awareness and Innovation Nationwide 
| Others |
| TRAIN | Teaching, Repeat, Ask, Imitate, Note
| Others |
| TRAIN | The Redstone Acceleration & Innovation Network
| Others |
| TRAIN | Tourist Railway Association Inc
| Others |
| TRAIN | Training Resource And Information Network
| Others |
| TRAIN | Training Rider Awareness Is Necessary
| Others |
| TRAIN | TrainingFinder Real-time Affiliate Integrated Network
| Others |