| Finwë | Finwë |
| Finwës hus | House of Finwë |
| Fiodor Lynen | Fiodor Felix Konrad Lynen |
| fiol | fiddle |
| fiolstråke | fiddlestick |
| Fionnula Flanagan | Fionnuala Flanagan |
| Fiorano | Fiorano Circuit |
| Fiorenzo di Lorenzo | Fiorenzo di Lorenzo |
| FIR | Finite impulse response |
| fira | celebrate |
| fira någons födelsedag | be one's birthday |
| firade | celebrating |
| firande | celebration |
| Firdausi | Ferdowsi |
| Fire of Unknown Origin | Fire of Unknown Origin |
| Fire Over England | Fire Over England |
| Firenze | Province of Florence |
| Firestone | Firestone Tire and Rubber Company |
| firma | corporation |
| Firma -n | Business |
| Firman | The Firm |
| firmor | corporation |
| firmware | firmware |
| firre | fishy |
| First Blood | First Blood |
| First Daughter | First Daughter |
| First Day of My Life | First Day of My Life |
| First Evil | First Evil |
| First Impressions of Earth | First Impressions of Earth |
| First Lady | First Lady |
| First Lego League | FIRST Lego League |
| First Nations | First Nations |
| First Price Auction | Sealed first-price auction |
| Firth of Clyde | Firth of Clyde |
| Firth of Forth | Firth of Forth |
| Firuz Shah | Firuz Shah Tughluq |
| fis | fart |
| fisa | fart |
| Fischbach-Göslikon | Fischbach-Göslikon |
| Fischer | Fischer |
| Fischer-Tropsch-processen | Fischer-Tropsch process |
| fisförnäm | uppity |
| Fish | Fish |
| FishBase | FishBase |
| Fisher King | The Fisher King |
| Fisibach | Fisibach |
| fisk | fish |
| Fisk -en -ar | Fish |
| fisk och skaldjur | seafood |
| fiska | fish |
| fiska med krok | angle |
