functional programming
- Abstract State Machine Language
- ACL2
- ActionScript
- Aldor
- Algebraic Logic Functional programming language
- Alice
- Alpaca
- Apache Groovy
- APL
- Arc
- Arduino
- Atom
- ATS
- AutoIt
- A♯
- Bosque
- C#
- C++
- Cadence SKILL
- Caml
- Caméléon
- Cayenne
- CDuce
- Ceylon
- Claire
- Clean
- Clojure
- Cobra
- CoffeeScript
- Common Lisp
- Concurrent Euclid
- CPL
- Cuneiform
- Curl
- Curry
- D
- Dafny
- Dart
- DUP programming language
- Dylan
- Easy Programming Language
- Elixir
- Elm
- Emacs Lisp
- Epigram
- Erlang
- Escher
- Euclid
- Extempore
- F#
- F*
- Factor
- FL
- Flix
- Franz Lisp
- Frege
- Gleam
- Go
- Go!
- Haggis
- Halide
- Harbour
- Hartmann pipeline
- Haskell
- Haxe
- Hop
- Hope
- Hume
- Idris
- Impromptu
- Incr Tcl
- ISLISP
- ISWIM
- J
- Java
- JavaScript
- jq
- JS++
- Julia
- K
- Kent Recursive Calculator
- Kojo
- Kotlin
- Lean
- LFE
- Lisp
- Little b
- LiveScript
- Logo
- LPC
- Lua
- LYaPAS
- Maple
- Mathematica
- MATLAB Q37805571
- MDL (programming language)
- Mercury
- ML
- Mojo
- Nemerle
- NESL
- newLISP
- Newspeak
- Nim
- Nix
- Nu
- Objective-J
- OCaml
- Opa
- Opal
- OPS5
- Orwell
- Oz
- Perl Data Language
- PHP
- PicoLisp
- Pict
- Pike
- Pixie
- POP-2
- Power Fx
- PowerShell
- Programming Computable Functions
- Pure
- PureScript
- Python
- Q (programming language from Kx Systems)
- Q#
- Qalb
- R
- Racket
- Raku
- REBOL
- Refal
- Ring
- Roc
- Ruby
- Rust
- SASL
- Sather
- Scala
- Scheme
- SISAL
- Source
- Standard ML
- SuperCollider
- Swift
- T
- Tcl
- Tea
- TXL
- TypeScript
- Unlambda
- V
- Vimscript
- Visual Basic (.NET)
- Visual Prolog
- Whiley
- Wolfram Language
- Wyvern
- XL
- XOTcl
- XQuery
- Xtend
- Zig