| F | modular programming, array programming, procedural programming | — | — |
| F# | object-oriented programming, metaprogramming, imperative programming, functional programming, concurrent computing, reflective programming | 2005 | F Sharp Software Foundation, Microsoft |
| F* | functional programming, imperative programming | — | Microsoft Research, Institut National de Recherche en Informatique et en Automatique |
| F-Script | array programming, object-oriented programming | 2009 | — |
| FACT | procedural programming | 1959 | — |
| Factor | functional programming, stack-oriented programming, multi-paradigm programming, concatenative programming | 2003 | Slava Pestov |
| Falcon | object-oriented programming, procedural programming | 2003 | — |
| FALSE | — | 1993 | Wouter van Oortmerssen |
| Fantom | multi-paradigm programming, object-oriented programming | 2005 | — |
| FARGO | — | — | IBM |
| Fasm | — | 1999 | — |
| FAUST | purely functional programming | 2002 | — |
| Felix | — | — | — |
| Fenix Project | — | — | — |
| Fennel | — | — | — |
| Ferite | — | 2000 | — |
| FileMaker Script | — | 1993 | — |
| FJAX | — | — | — |
| Fjölnir | object-oriented programming, procedural programming | — | — |
| FL | function-level programming, functional programming | 1989 | — |
| FlagShip | — | — | — |
| Flapjax | functional reactive programming | — | — |
| Flavors | object-oriented programming | 1982 | — |
| Flix | imperative programming, logic programming, functional programming | 2016 | — |
| FLOW | non-structured programming | — | — |
| Flow chart language | imperative programming | 1989 | — |
| FLOW-MATIC | procedural programming, imperative programming | 1955 | — |
| Flowcode | — | — | — |
| Flowgorithm | structured programming | 2014 | — |
| FO(.) | — | — | — |
| FOCAL | — | 1968 | — |
| FORMAC | — | 1964 | Jean E. Sammet |
| Forsythe | procedural programming | — | — |
| Forth | reflective programming, procedural programming, concatenative programming, stack-oriented programming | 1970 | Charles H. Moore |
| Fortran | procedural programming, generic programming, object-oriented programming, array programming, imperative programming, structured programming | 1957 | IBM, John Backus |
| Fortress | — | 2006 | — |
| FoxPro | procedural programming, object-oriented programming | 1991 | — |
| FP | function-level programming | 1977 | — |
| FpgaC | — | 2005 | John L. Bass |
| Franz Lisp | metaprogramming, reflective programming, procedural programming, functional programming | 1980 | — |
| FreeBASIC | procedural programming, object-oriented programming | 2004 | — |
| FreeFem++ | — | — | Frédéric Hecht, Pierre Jolivet, Pierre and Marie Curie University |
| Frege | functional programming, purely functional programming | — | — |
| Freiburger Code | — | 1955 | — |
| Fremio | — | 2025 | — |
| Frenetic | domain-specific language | — | — |
| FriCAS | — | — | — |
| Fril | logic programming | — | — |
| Frink | multi-paradigm programming | — | — |
| Futhark | purely functional programming, array programming | 2014 | — |
| FutureBASIC | procedural programming | — | — |
| FXML | declarative programming | 2011 | Oracle Corporation |