| IMRL | Illinois and Missouri Rail Link (Iowa, Chicago and Eastern Railroad) 
| Others |
| IMRL | Increasing Mean Residual Life
| Others |
| IMRL | Individual Material Readiness List
| Others |
| IMRL | Individual Material Requirements List
| Others |
| IMRL | Inorganic Materials Research Laboratory
| Others |
| IMRL | Iowa, Chicago, and Eastern Railroad Corporation (formerly Illinois and Missouri Rail Link, L.L.C.)
| Others |
| IMRL | Irish Mycobacteria Reference Laboratory
| Others |