| fiber | fiber |
| Fiberoptik | Optical fiber |
| fiberrika | fibrous |
| fiberväxt | textile plant |
| Fibonacci heap | Fibonacci heap |
| Fibonaccital | Fibonacci number |
| fibrer | fibres |
| fibrig | fibrous |
| Fibrillin | Fibrillin |
| fibrin | fibrin |
| fibrinogen | fibrinogen |
| fibroblast | fibroblast |
| fibrosit | fibrositis |
| fibrös | fibrous |
| Fichte | Fir |
| Fichtelgebirge | Fichtelgebirge |
| fick | got |
| ficka | trouser pocket |
| fickan full | pocketful |
| Fickan full av flax | Pocketful of Miracles |
| fickflaska | flask |
| fickkniv | pocketknife |
| ficklampa | torch |
| fickpengar | allowance |
| ficktjuv | pickpocket |
| fickur | watch |
| FIDE | Fédération Internationale des Échecs |
| Fidel Castro | Fidel Castro |
| Fidel Sanchez Hernández | Fidel Sánchez Hernández |
| Fideris | Fideris |
| Fides | Fides |
| Fides et Ratio | Fides et Ratio |
| Fidias | Phidias |
| FidoNet | FidoNet |
| Fidèle Moungar | Fidèle Moungar |
| Fidél Pálffy | Fidél Pálffy |
| Field Emission Display | Field emission display |
| Field Museum | Field Museum of Natural History |
| Fieldsmedaljen | Fields Medal |
| fiende | enemy |
| fiende till | enemy of |
| fiender | enemies |
| fiendskap | enmity |
| fientlig | hostile |
