- _hyperscript
- 3BC-Lang
- 4
- A+
- ABC
- ABCL
- ABS
- Accelerate
- ACCEPT
- A Compiler Writing Journey
- ActionScript
- Acton
- Ada
- Ada++
- Adama
- Adept
- AdvSys
- Afnix
- Agda
- Agena
- AIScript
- Aith
- Alan
- Albatross
- Alda
- Alef
- Algol
- Alice
- Alice (AliceML)
- AlloyTools
- Alore
- Alpaca
- Alumina
- Amber-Lang
- Ambient-oriented programming
- Amiga E
- AML (Architecture Meta Language)
- AMPL
- Amulet
- AngelScript
- ANI
- ANIL (A Nice Intermediate Language)
- Anko
- Ante
- Antimony
- ANTLR
- Apache.org
- Apache Polygene
- Apache Royale
- Ape
- Apeji PX
- Apex
- Apexlang
- APL
- April
- Aqua
- Arc
- Archimate
- Archimate DSL
- Arden (syntax)
- Arend
- Argo
- Argon
- Argus
- Aria
- Ark
- Ark
- ArkScript
- ARM Assembly
- Arturo
- as (GNU assembler)
- Ascent
- Aseba
- ASM.js
- AsmL
- ASN.1 (Abstract Syntax Notation)
- AspectC++
- AspectJ
- Aspect-Oriented Programming (AOP)
- Assembly language (generic)
- AssemblyScript
- Asteria
- AST-grep
- Astro
- Asymptote
- ATS
- Atto
- Aucoda
- Aurora
- Austral
- AutoHotKey
- AutoIt
- Avail Programming Language
- Awesome (lists) (Project Awesome)
- Awk
- Axum
- B4X
- Babel
- Babelsberg
- Backlang
- Bagel
- BAIK
- Bait
- Ballerina
- Barb
- Barfi
- Barn
- bash (command-line shell)
- Basic (and variants)
- Basil
- Batakjava
- Batsh
- BBCBasic
- BBytes
- BCPL
- Beads
- BeanShell
- Beef
- Beluga
- Bend
- Berry
- Beryl
- Beta
- Bflat
- Bhl
- Bicep
- Bimble
- BIPLAN (Byte coded Interpreted Programming LANguage)
- Biscuit
- bison
- Bite
- Bitsy
- B-Juliet
- Bla
- Blackprint
- Blade
- BlazeX
- Blazonry
- Bleach
- Blech
- BlitzMax
- Blockly
- BLOG
- Bloodshed Compilers
- Bloom
- Boa
- Bob
- Bob2
- Boba
- Bog
- Bolin
- Bolt
- Boo
- Boogie
- Boomerang
- Boomerang
- Borealis
- Boron
- BorrowScript
- Bosatsu
- Boson
- Bosque
- Box
- Boxlang
- BQN
- Braid
- Brain
- Brainfuck
- BridgeScript
- Bright ML
- BRIL (Big Red Intermediate Language)
- BRL
- Bromium
- Brython
- Build-Your-Own-X
- Bulfinch
- Butter
- buzz
- Buzz2
- Byte Buddy
- Byzer
- C
- C-- (C-minus-minus)
- C#
- C++
- C++/CLI
- C++11 Language Features
- C++14 Language Features
- C++17 Language Features
- C++20 Language Features
- C++ FFI
- C2
- C3: Clipper Compatible Compiler
- c3c
- C4 (C in Four Functions)
- Cadl
- CafeOBJ
- Cairo
- Caja
- Cakelisp
- CakeML
- CAL / OpenQuark
- Calcit
- Caledon
- Callisto
- Calypso
- Camelot
- Cane
- Cant
- Carp
- Cassette
- Castile
- Cat
- Cat9
- Catala
- Cecil
- Cedar
- cel (Common Expression Language)
- Cell
- Cello (libcello)
- Cesium
- Céu
- Ceylon
- CFML (Cold Fusion Markup Language)
- ChaiScript
- Changes
- Chaos
- Chapel
- Charity
- Charly
- Chavascript
- Checked C
- Cheerp C/C++
- Chef
- Chevrotain
- ChocoPy
- ChucK
- Ciao
- Ciao Prolog
- Cicada
- CilTools
- Circle
- Circle
- CircuitPython
- Cish
- Cito
- Citron
- CLAIRE4
- Claro
- clasp
- Clawn
- Clay
- Clean
- ClearScript
- Clio
- Clip
- clip (command-line illustration processor)
- Clipper (aka xBase)
- CLIPS
- Cloe
- Clojure
- CLU
- Clue
- Clyde
- Cmajor
- Cmajor
- Co
- Co
- Co
- coala
- COBOL
- Cobra
- Coco
- Coconut
- CocoR
- Cod
- Code Generation
- CodePortal (Language)
- Coding Katas
- CoffeeScript
- Cogent
- Cognate
- cola
- Colin S Gordon's Electronic References
- Colm
- Comet
- Compiler correctness reading
- Compilers.NET (Website)
- Compilers Implementation/Optimization Reading
- Compis
- ComponentPascal
- Compose
- Concurnas
- Cone
- Console
- Context
- Continuation-passing style
- Converge
- Cool
- Copper
- Coq
- Core
- Cosmos
- Cotowali
- Courses on Language Development
- CovariantScript
- Cow
- Cowgol
- Coyote
- CPL
- C-plus-Equality (or See-Equality)
- Cppfront
- Cppfront (Cpp2)
- CppNet
- CPython
- CQL (Cassandra Query Language)
- Crab
- Crack
- Cradle
- CRDTs (Conflict-free Replicated Data Types)
- Create Your Own Programming Language
- Cricket
- Crow
- Crumb
- Crunch
- Crystal
- CSCS
- CSL
- cT
- Cub
- Cubiml
- CUE (Configure Unify Execute) Language
- Cuneiform
- CUP
- cur
- Curl
- Curry
- CWEB
- Cyber
- Cypher
- Cython
- C∀ (Cforall)
- D
- D2
- DaCE
- Dachs
- Dafny
- Dale
- Dark
- DarkBasicPro
- Dart
- daScript
- Dassie
- Datalog
- Decker
- DeltaScript
- Derw
- DeviceScript
- DeviceScript
- Dg
- Dhall
- Dialect
- Dialog
- Diamond
- Dictu
- Dino
- Dip
- Disco
- Discus
- Distributed Application Specification Language (DASL)
- Ditto
- Ditto
- DML
- DML2
- dogescript
- Dolphin Smalltalk
- DolphinVM
- Domain Specific Languages
- Dora
- DOT
- DotLisp
- DotNext
- DPMN (Discrete Process Modeling Language)
- Draak
- Draco
- Draconic
- Dragon
- DreamBerd
- Dream Maker
- DSLisp
- DTrace
- Duckscript
- DustyScript
- DWScript
- Dyalect
- Dylan
- Dynamic Analysis Sanitizers reading
- Dynamic Binary Instrumentation (DBI) reading
- Dynamic Binary Translation (DBT) reading
- Dynamic Language Runtime (DLR)
- Dynasty
- Dyon
- E
- E4X (ECMAScript for XML)
- Earl Grey
- EarScript
- Easylang
- eC
- ECMAScript (aka Javascript)
- Ecstasy (XTC)
- Edina
- Edward
- EEL
- Eff
- Effective C++, 3rd Ed
- Effects and effect systems (reading)
- EffectsJS
- Effekt
- Egel
- Egison
- Eiffel
- Ein
- Elan
- elastiC
- Electra
- Elena
- ELFE (Extensible Language for Everyday (and the Internet of Things))
- Elixir
- Ella
- Elm
- Elsa
- Elvish
- emiT-C
- EML
- Emojicode
- Emscripten
- Emu (The EMbeddable Utility Language)
- Enki
- Enso (aka Luna)
- Enterprise
- EO (Elegant Objects)
- Erg
- Erg
- ErgoAI
- Erlang/OTP
- Esoteric Programming Languages
- esProc SPL
- Essence#
- Esterel
- Eta
- etalk
- Euphoria
- Eval
- Eve
- Event Processing Language (EPL)
- EverPARSE
- Evlan
- Excel LAMBDA
- execline
- Exo2
- Expr
- Expresso
- F
- F--
- F* (F-star)
- Fable
- Facet
- FaCT
- Factor
- Falcon
- False
- FALSE
- Fancy
- Fantom
- Fanx
- fasm (Flat Assembler)
- FAST
- Fault
- Faust (Functional Audio Stream)
- Fay
- FBSL (Freestyle Basic Script Language)
- fe
- Felix
- Fennel
- Feral
- ferite
- Fermat
- FermaT (FermaT Transformation System)
- Fetlang
- Ficl (Forth Inspired Command Language)
- Figaro
- FIJI (ForthIsh Java Interpreter)
- Fika
- Finch
- Finch
- FiveTran
- FixScript
- FJ (Functional Java)
- Fjord
- Flapjax
- Flavor (Formal Language for Audio-Visual Object Representation)
- Flax
- flex
- Flix
- Flora
- Flow
- Flutter for Windows
- Flyde
- Folders (esoteric language)
- Foolang
- Foreign Function Interfaces (FFI)
- Forest
- Formality
- Forpost
- Forscape
- Forsp
- Forth
- FORTRAN (FORmula TRANslator)
- Fortress
- Fractran
- Fractran
- Frawk
- FreeBASIC
- FreeOberon
- FreePascal
- Free Programming Books
- Frege
- Frenetic
- Frink
- FScript
- Ftwalk
- Fun
- FuncSug
- Functa
- Functional reading
- Funnel
- Fusion
- Futhark
- Fux
- Fuzion
- Gambas
- GameMonkeyScript
- GAML
- Garnet
- GDL (GNU Data Language)
- GDScript
- Gecode
- GeneralScript
- Genesis
- Gentee
- GENTLE Compiler Construction System
- Ghost
- Ghostly
- GIMI
- Giml
- GitQL
- Glass
- Gleam
- Glee
- GLICOL
- Glide
- Glinda
- GLMS
- Gluon
- GluonJ
- GNU MIX Development Kit (MDK)
- GNU Smalltalk
- Go
- Go+
- Goal
- GOAL (part of Jak-Project)
- Goby
- Gödel
- Gofra
- GOLD (Parser)
- Golo
- Gosu
- GPP
- gptlang
- Grace
- Grace
- Grain
- Granule
- Graphviz
- Gravity
- Greenfoot
- Gren
- Gri
- Groovy
- Gui4Cli
- GUILE
- GWBasic
- Gwion
- GYS
- Hack
- Haka
- Hakaru
- Halide
- Hamler
- Hamler
- Handel
- Harbour
- Hare
- Hascal
- Haskell
- Haste
- Haxe
- Hazel
- Hazure
- hdl (Hardware Description Language)
- Heatrix
- Hecl
- Hedy
- Helix
- Hemlock
- Heresy
- Heron
- Hetu
- Hexagony
- HGSL
- Hilvi
- Hime
- HLA (High Level Assembler)
- Hobbes
- Hook
- Hope
- Horse64
- How to Design Programs
- Hugorm
- Húngaro
- Hush
- Husky
- Husky
- Hy
- Hybris
- Hylo
- HyperCard
- Hypertalk
- I
- ICI
- Icon (and Unicon)
- IDL (Interactive Data Language)
- Idris
- Iguana
- IL2CPU
- Ilograph Diagramming Language (IDL)
- ILSpy
- Imba
- Imp
- Implementation Patterns
- Inform
- Inform 6
- Inform 7
- Inger
- Ink
- Ink
- Inko
- InstantC
- Intercal
- IntercalScript
- Intuitionistic
- Inweb
- Io
- Ioke
- IronJS
- ISPC
- ISWIM
- IVy
- IvyScript
- J (programming language)
- J*
- Jacinda
- Jai
- jakt
- Janet
- Janino
- Jank
- Jasm
- Jasmin
- Jason
- Java
- Javascript.NET
- Javassist
- jcpp
- Jelly
- Jelly
- JESS (Java Expert System Shell)
- JFlex
- Jikes (Java compiler)
- jint
- Jinx
- JLex
- JME
- JMPLib
- Join Java
- Jolie
- Joule
- Joy
- JS++
- Juka
- Julia
- Juliet
- June
- Juvix
- JVM-based languages
- JVM Language Summit
- JWEB
- Jx9
- Jython
- K
- KAGSA
- Kaitai Struct
- Kalaam
- Kalyn
- Kara
- Kara
- Katahdin
- KataScript
- Kawa
- KCL
- KDB+
- Keli
- Kempe
- Kernel
- Ketos
- Kew
- Keystone (Assembler)
- Ki
- Kin
- Kind
- Kinx
- Kite
- Kitten
- KiXtart
- Klaxon
- Klong
- Knowledge Graph Language (KGL)
- Knowledge Interchange Format (KIF)
- Ko
- Kobra
- Kogut
- Koka
- Kotlin
- Koto
- Kuljet
- Kusto (query language)
- L.in.oleum
- L2
- Labrys
- Lama
- lambda-ski
- Langium
- Language Development
- Language Development Syntax
- Languages
- Lark
- Lasca
- Lawvere
- LDPL
- Leafscript
- Lean
- Learn X in Y Minutes
- Lemick
- Lemon
- Leo
- Let's Build a Compiler (Jack Crenshaw)
- Letlang
- Lever
- Lia
- liblg
- Libra
- Libra
- Lice
- Lightscript
- Light Table (IDE)
- Lil
- Lily
- Limbo
- Linear ML
- Links
- Lioness
- Lisa (Lisp-based Intelligent Software Agents)
- Lisp
- LispE
- Literate
- Literate programming
- literateprogramming.com
- LITTLE
- Littlefoot
- LiveCode
- LiveScript
- Liz
- Lizard
- llrl
- LLVM (toolchain)
- LMQL
- Lobster
- Logica
- Logic Programming
- Logo
- Logtalk
- Loko
- LoLa
- LOLCODE
- LOLCODE Specification (1.2)
- Lore
- Lox
- LPS (Logic Production Systems)
- LQN (Lisp Query Notation)
- LSCRIPT
- LSTS
- Lua
- Luau
- Lua VM
- Luban
- Luf
- Luna
- Lush
- Lux
- Luxury
- lviv
- Lys
- M (MUMPS: Massachusetts General Hospital Utility Multi-Programming System)
- m4
- Macro Lambda Calculus
- Magmide
- Magnet
- Magpie
- Magpie
- Makam
- Maker
- Makeshift
- MakoForth
- Malbolge
- MANOOL
- Manticore
- Mantra
- Manual
- Marco
- Mare
- MarkovJunior
- Marmelade
- Maru
- Marvin
- Mash
- MASICA
- Mass
- Mastering C++ Pointers
- Maude
- Mazeppa
- Mbeddr
- MCPL
- MDL
- Mech
- Medusa
- Melody
- Memory Management and Garbage Collection (reading and references)
- Mercat
- Mercury
- Merlin
- Message passing (reading)
- MetaCall
- METAL
- MetaLang 99
- Metalua
- Metamine
- Metaobject Protocol (MOP)
- Mewl
- MewMew
- micro-mitten
- MicroPython
- Microservices DSL
- Microsoft Open Specifications Site
- min
- Min
- MiniAgda
- miniKanren
- MiniScript
- Minsk
- Mint
- MIPS Assembly
- Mirah
- Mirah
- Miranda
- Mirth
- Misc
- Mistral
- MIX-MIXAL
- ML
- Mlatu
- ML-I
- mLite
- MLKit
- MLSub
- Mn
- mobl
- Mochi
- Modeling Languages
- Modern Compiler Implementation
- Modula-2
- Modula-3
- Moirai-kt
- Mojo
- Monads
- Mond
- Monicelli
- Monkey
- Monkey-2
- Monkey-X
- Monte
- Moonscript
- Mops
- morloc
- morph
- Motion
- Motoko
- Motorway
- Mouse
- Move
- MPS
- MPS (Meta-Programming System)
- Mu
- Mu (Autodesk Graphics DSL/Shader language)
- Mu (Scripting language)
- Multi-Paradigm Design in C++
- Mun
- Muon
- Myia
- mypy
- Myst
- Nanopass
- Nasal
- nasm (Netwide Assembler)
- Natalie
- Nature
- Nazo ML
- Neat
- Neit
- Neko (Language)
- Nelua
- Nemerle
- Neon
- Neptune
- NetLogo
- Neut
- Nevalang
- Never
- NewLang
- newRPL
- Newspeak
- Niall
- Nice
- Nickel
- Nickle
- Nim
- Nimskull
- Nit
- Nix
- Nix/NixOS/nixpkgs
- Nixt
- Node-RED
- NodeScript
- Noisecraft
- Noja
- Noodle
- North-Hollywood Python
- Nosica
- Notable Design Patterns for Domain-Specific Languages
- notc
- Noulith
- Novika
- Nox
- NPL
- NRefactory
- nScript
- NScript
- Nu
- nullc
- nuweb
- Nylo
- nyx
- Oak
- Oberon
- Oberon+
- Objeck
- Object-capability model
- Objective-C
- Objective-J
- Objective Lua
- Objective-S
- Object-oriented programming (OOP)
- ObjectScript
- Object Thinking
- OCaml
- Occam
- Occam-pi
- Octave (GNU Octave)
- Ode
- Odin
- Ogol
- Ohm
- Oil
- Okta
- OMeta (OMeta/JS)
- One
- Onyx
- OOC
- Ook!
- Opa
- Opal
- OpenComal
- OpenRewrite
- Open Smalltalk
- OpenZz
- Orca
- Orion
- OverScript
- Ox
- OxCaml
- Oxide
- OxygenBasic
- Oz (language) and Mozart (programming system)
- P
- P#
- PAIP
- Paka
- Papers We Love
- Parser (programming language)
- Parser Construction Kit (PCK)
- Parsix
- Pascal (and Object Pascal)
- PascalABC.NET
- PascalABCNet
- Pashmak
- Passerine
- Patch
- Pawn
- PaxScript
- PCASTL
- PCBasic
- Peachpie
- Pen
- Pendulum
- Pepper
- Peregrine
- Peridot
- Perl
- Peter
- Pharo
- Phix
- PHP
- Picat
- Piccola
- Pico
- PicoLisp
- Pict
- Piet
- Pikachu
- Pikelet
- Pikt
- PILL
- Pinafore
- Pineapple
- Pinecone
- PineScript
- Pipefish
- Pipelines
- Pixie
- Pizza
- PL/0 Language Tools
- Plaid
- PlantUML
- Plato
- PLC
- Plutus
- Pluvo
- PLZoo (Programming Languages Zoo)
- Pocketlang
- Pogo, Pogoscript
- Pointless
- Poly
- Polyglot
- Polyglot
- Polylang
- Polylith
- Pony
- Portable Document Format (PDF)
- PostScript
- Potassco (clingo, gringo, clasp, clingcon, aspcud, asprin)
- Potion
- PowerFX
- POWER-KI
- PowerMops
- PowerShell
- Practical Compiler Construction
- Pragma
- Preql
- Pretty Laughable Language
- Primi
- Priml
- Priml
- Processing
- Program analysis
- Programming Dojo
- Programming Language Concepts
- Programming language lists
- Programming Languages: Application and Interpretation
- Programming Language sites/links
- Programming Paradigms for Dummies: What Every Programmer Should Know
- Prolog
- Prompto
- Prose
- PROSE Framework
- Prowl
- PRQL (Pipelined Relational Query Language)
- Pug
- Pulumi
- Punk-C
- Pure
- Pure
- PureBasic
- Pure Data
- PureScript
- PuzzleScript
- PXP
- Pycopy
- Pyodide
- Pyonkee
- PyPy
- Pyret
- Pyro
- Python
- Pyxell
- q
- Q (Scripting Language)
- QBE
- QED
- Qi
- Qogo
- Qore
- QuakeC/VM
- Quick.Ref Cheat Sheets
- Quil
- Quint
- Quirrel
- Quorum
- R
- R3
- R4
- Racket
- Racket
- RAD Basic
- Radiance
- Radish
- Ragel
- Raku
- RapidBATCH
- RaptorJIT
- RascalMPL
- Rave
- Raven-Lang
- Ravenscript
- Ravi
- Reactive ML
- Reading in software
- Reading on Domain-Specific Languages (DSLs)
- Reason
- Rebol
- Red
- Redex
- Redline Smalltalk
- Reflow
- Regent (Regent-Lang)
- Renjin
- ReoScript
- Req
- Rescript
- Retejs
- Rewrite
- Rexx
- Rhai
- Rhombus
- Rhovas
- Ribbon
- Rick Roll
- Ring
- Rio
- RISC-V Assembly
- RISC-V Reading
- RISC-V Software
- Rivescript
- Rivet
- Robin
- RobotWar
- Roc
- Rock
- Rockstar
- ROFLKODE
- Roman II
- Roy
- RPD
- RPG
- RPL2 (Reverse Polish Lisp/2)
- rpn
- RPython
- Ruby
- Rulebook
- RuleML
- Rune
- RuneScript
- Rust
- RustScript
- SaC (Single-Assignment C)
- Sage
- SAL (Source code Annotation Language)
- Salt
- SASM
- Sather
- SATySFi (pronounced in the same way as the verb “satisfy” in English)
- Scala
- Scalable Vector Graphics (SVG)
- Scale
- Scheme
- Scion
- Scratch
- ScratchJr
- Scratch VM
- ScrollSets
- Scryer Prolog
- SCXML (State Chart XML)
- SDL (Specification and Definition Language)
- Seed7
- Self
- Selfie
- Semmle QL
- Senegal
- Sequence
- SetlX
- S-Expressions
- SGScript
- Shakespeare (Programming Language)
- Shattuck
- shc
- SheerPower
- Shiika
- Silice
- Silk
- SILK (Simple Interpreted Language Kit)
- Silq
- Silt
- SimpleScript
- Simula
- Sirius
- SISAL
- Sixten
- Skew
- Skip (or Skiplang)
- Slang
- Slang2
- Slate
- Sleep
- Sling
- SMAL
- Smali
- Small Basic
- SmallDragon
- SmallJS
- Smallscript
- Smalltalk
- SmallVM
- SmashTest
- Smithy
- SML.NET
- SML#
- Smudge
- Snap
- SNOBOL ("StriNg Oriented and symBOlic Language")
- Snowball
- Soar
- Solidity
- Sonar Architect
- Sophie
- Sorbet
- Souffle
- Souffle
- Soul
- SOUL
- SourcePawn
- SPA
- sparcl
- SPARK (Scanning, Parsing, And Rewriting Kit)
- Spec#
- Sphinx
- Spider
- SpiderBasic
- Spin
- Spiral
- Spoofax Language Workbench
- SPOON
- Spry
- SQL (Structured Query Language)
- SQLC
- SQLglot
- Squeak
- Squilu
- Squirrel
- SR (Synchronizing Resources)
- srcML
- STABLE
- Stamp
- Star
- Stark
- Starlark (formerly known as Skylark)
- Starlark (formerly Skylark)
- StarShip
- Static Program Analysis
- STELLA
- STELLA
- Stencil
- STOICAL (STack Oriented Integrated Compiler Adapted to Linux)
- Storyscript
- Storyteller
- Streem
- StrictlyFalse
- Stroscot
- Stroyent
- Structure and Interpretation of Computer Programs (SICP)
- Structured and Unstructured Query Language (SUQL)
- SubC
- Sugar
- SugarCubes
- Suneido
- Supercollider
- Superx++
- Swift
- Swift FFI
- Swift Playgrounds
- SwiftWasm
- SWI-Prolog
- T3X
- T3XFORTH
- TableM
- Tables
- Tabloid
- TADS
- Tahini
- Taichi
- TAMGU
- Tamsin
- Tandem
- Tao
- Tao3D
- tasm (Turbo Assembler)
- Tau
- Taxi
- Taxi: The Programming Language
- Tcl/Java
- Tcl (Tool Control Language)
- TDL
- Teach Yourself Computer Science
- TeaScript
- Temporal Logic of Actions (TLA+)
- Tengo
- Terra
- The Grand Unified Programming Theory: The Pure Function Pipeline Data Flow with Principle-based Warehouse/Workshop Model
- The Witchcraft Compiler Collection
- ThinBasic
- ThinScript
- Thoughts and reading about continuations
- Thoughts and reading on logic languages
- Thyrd
- Tidal (TidalCycles)
- Timid
- TiML
- tin
- Tint
- TinyBasic
- TinyC
- Tinymoe
- TIScript
- Titan
- Toit
- Tokay
- ToonTalk
- TopazRuby
- TopShell
- Torgo
- TornadoVM
- Tovie
- Toy
- Toy2
- Toy3
- Triton
- Trygve
- Trylon
- Tug
- Turin
- Turing
- TUTOR (programming language)
- Tutorial D (aka D)
- TwinBasic
- Twine
- Tycho
- Types and type systems (reading)
- TypeScript
- Typhon
- Typst
- Tyr
- Tyrade
- Tyro
- U
- UILang
- Uiua *(wee-wuh)*
- Umka
- Umple
- Unicon
- Unison
- Unit
- Unlambda
- Ur (Ur/Web)
- Urbi
- V
- V1
- Val
- Vala
- Vale (aka VLang, GelLLVM)
- VALE (Verified Assembly for Everest)
- VAST
- Verona
- Verse
- Verve
- Victim
- Vigil
- Vinci
- Vinegar
- Virgil
- Visual Basic (.NET)
- Visula
- vizh
- VMIR (Virtual Machine for Intermediate Representation)
- Volt
- Vortex
- Vox
- Voyd
- W
- Wa
- Wase
- Wasm Interface Types (WIT)
- Wasm-tools
- Wasp
- Wasp Lisp
- Waterbear
- wax
- WebAssembly Text (WAT)
- WebC
- WebDSL
- Well
- wenyan
- Whenever
- Whiley
- Whip
- Wind
- Wing
- wlang
- Wolfram Language
- Wren
- Write your own Tiny Programming System
- Wu
- Wuffs
- WyldCard
- Wyvern
- X
- X#
- X# (XSharp)
- X10
- x86/x64 Assembly
- x86 Talks
- XIDEK
- XL
- xlang
- xlisp
- Xojo
- XPL
- XSB
- XState
- Xtend
- Xtext
- Yab
- Yarnspinner
- Yarr
- YASL (Yet Another Scripting Language)
- Yasm Modular Assembler Project
- Yatta
- Yeti
- Ylang
- Yo
- Yoix
- Yona
- Yorick
- Yuescript
- Z#
- Zang
- Zenon
- Zephir
- Zeta
- Zetavm
- ZetScript
- Zhi# (ZhiSharp)
- Zig
- Zilch
- Zimbu
- Zoem
- ZOMBIE