| REF | Radiology Education Foundation 
| Others |
| REF | Rainbows End Farm
| Others |
| REF | Random Electricity Fluctuation
| Others |
| REF | Rapid Equipping Force
| Others |
| REF | Reach En Force
| Others |
| REF | Reduced Echelon Form
| Others |
| REF | Reduced Elan Format
| Others |
| Ref | Reference
| Others |
| REF | Reference Combustion Vehicle Fleet
| Others |
| REF | Reference File
| Others |
| REF | Reference(S)
| Others |
| REF | REFerences
| Others |
| REF | Refrigerator
| Others |
| REF | Refurbish, Refurbishment
| Others |
| REF | Regional Ejection Fraction
| Others |
| REF | Regional Executive Forum
| Others |
| REF | Relative Exposure Factor
| Others |
| REF | renal erythropoietic factor (erythropoeitin)
| Others |
| REF | Renewable Energy Foundation
| Others |
| REF | Renewable Energy Fund
| Others |
| REF | Repartition Electronique de Freinage
| Others |
| REF | Research Excellence Framework
| Others |
| REF | research excellence framework [UK]
| Others |
| REF | Research Excellence Fund
| Others |
| REF | Reseau Des Emetteurs Francais
| Others |
| REF | Restricted Earth Fault
| Others |
| REF | Restriction Endonuclease Fingerprinting
| Others |
| REF | Restriction Endonuclease Fragments
| Others |
| REF | Results Educational Fund
| Others |
| REF | Rna And Export Factor
| Others |
| REF | Roma Education Fund
| Others |
| REF | Roseland Education Foundation
| Others |
| REF | Row Echelon Form
| Others |
| REF | Rubber Exchange Forum
| Others |
| REF | Ruin Everybodys' Fun
| Others |