Language list

Note that languages that are merely jokes even compared to other esoteric languages are located in the joke language list.

Please link only to existing article pages on this wiki. A stub is enough to start with, as long as it has a link to further information. Languages with no link to a description are likely to be deleted.

Non-alphabetic

 * `LML
 * !!!
 * !!!Batch
 * #hell
 * $tonePits
 * ()
 * 
 * :;+-#?!
 * (0)
 * ( ͡° ͜ʖ ͡°)fuck
 * *><>
 * *brainfuck
 * *W
 * ++brainfuck++
 * --C-=C-C--
 * .box
 * .Gertrude
 * .m@dpr'a'prozessor
 * .mOdMoDwOrM
 * .yacuabll
 * ///
 * 0(nop^)
 * 01_
 * 0815
 * 0x29A
 * 0x29C
 * 1+
 * 123
 * 1337
 * 1cnis
 * 1L
 * 1mpr0mp2
 * 2-ill
 * 2050706
 * 23
 * 2B
 * 2D-Reverse
 * 2DP
 * 2iota
 * 2L
 * 3code
 * 3D
 * 3switchBF
 * 4
 * 4DL
 * 5-logic
 * 5command
 * 6ix
 * 7
 * 7Basic
 * 90
 * 96
 * ≠
 * &gt;&lt;&gt;
 * ???
 * @tention!
 * @text
 * []
 * \BV
 * ]
 * ~
 * ~#
 * ~-~!
 * ~ATH
 * ~English
 * µCurse
 * Юᓂ곧⎔

A

 * AAAAAAAAAAAAAA!!!!
 * Aargh!
 * ABC
 * ABCDXYZ
 * ABCR
 * ABCs
 * ACIDIC
 * A:;
 * ACRONYM
 * Addleq
 * ADJUST
 * Advanced Brainfuck
 * Aeolbonn
 * Aeon
 * AFTL
 * Agony
 * a-gram
 * Aheui
 * AIV
 * Ajsone
 * Alacrity
 * ALAGUF
 * Alchemy
 * Ale
 * Alex
 * Alice
 * Alight
 * ALPACA
 * AlPhAbEt
 * AlphaBeta
 * Alphabet Stew
 * Alphabetti spaghetti
 * ALPL
 * /ˈæmbiːɛf/
 * Amelia
 * Amycus
 * Amycus Severus
 * And
 * Andrei Machine 9000
 * Andromeda
 * Anemone
 * ANItka
 * AnnieFlow
 * Another Pi Language
 * Ante
 * AnyPL
 * A0A0
 * A Pear Tree
 * A programming language is a formal language that specifies a set of instructions that can be used to produce various kinds of output.
 * Arbol
 * ARCAL
 * Archway
 * Argh!
 * Armok
 * ArnoldC
 * Arrow
 * AsciiDots
 * asdf
 * Ases - An Brazilian esoteric programming language
 * Ashtol
 * AssemblerFuck
 * Atom
 * AttoASM
 * ATZ
 * Aubergine
 * Auo
 * Aura
 * AutoMouse
 * Ax
 * axo
 * Aya
 * az

B

 * BackFlip
 * Backpackr
 * Backtracking INTERCAL
 * Bag
 * BAK
 * BAM128
 * BANCStar
 * Bantas
 * Barely
 * Basicfuck
 * Basic Input/Output Commands
 * Bauberqueue
 * BCDFuck
 * BDAMD
 * Beam
 * Bear Food
 * Beatnik
 * Beeswax
 * Befalse
 * Befreak
 * Befunge
 * Befunge/index.php
 * Befunk
 * Benul
 * BestFriends.js
 * beta-Juliet
 * Betterave
 * Beturing
 * BF+BF
 * BFEnet
 * BFI
 * BF Joust
 * BFM
 * BF-PDA
 * BF-RLE
 * BF-SC
 * Billiard ball machine
 * B1nary
 * Binary combinatory logic
 * Binaryfuck
 * Binary lambda calculus
 * Binodu
 * BIO
 * Biota
 * Bipoint
 * BIT
 * BitBitJump
 * BitChanger
 * BitChip
 * BitCycle
 * BitFlip
 * Bitfuck
 * Bitoven
 * BiTrax
 * Bitter
 * Bitwise Cyclic Tag
 * Blablafuck
 * Black
 * Blank
 * Blind
 * blo
 * Bloop
 * Bloux
 * Boat
 * BogusForth
 * Boolfuck
 * Boxy
 * Bracket Hax
 * Brackit
 * Brain
 * brainbool
 * BrainClub
 * Braincopter
 * BrainCurses
 * Brainfact
 * Brain-Flak
 * Brainfork
 * brainfuck
 * Brainfuck++
 * Brainfuck+3
 * Brainfuck--
 * Brainfuck Substitutor
 * BrainfuckXT
 * Brainfuck/w/index.php?title=Talk:Brainfuck/index.php
 * brainfunct
 * BrainFunge2
 * Braingolf
 * Brainhype
 * BrainInt
 * Brainloller
 * Brainlove
 * Brains
 * Brainscrambler
 * BrainSpace 1.0
 * Brainstack
 * Brainstuck
 * Braintrust
 * Braintwist
 * Braktif
 * Branch
 * BRB
 * Brian & Chuck
 * Brook
 * Bruijndejx
 * BRZRK
 * BSM
 * B-tapemark
 * Bub
 * Bubble
 * Bug Computer
 * Bullfrog
 * Burlesque
 * Burro
 * But Is It Art?
 * BuzzFizz
 * ByteByteJump
 * Bytemap
 * BytePusher
 * Byter
 * Byte Syze

C

 * ↄ
 * C+
 * Cabra
 * Calculator
 * Calculon
 * Calcutape
 * CalScript
 * Camouflage
 * Campfire
 * CaneCode
 * Capuirequiem
 * Cardinal
 * Carriage
 * CASTLE
 * Catch
 * cbrain
 * Cellbrain
 * Celum
 * Cfluviurrh
 * Chaincode
 * Chaingate
 * Challenger
 * Chance
 * Charcoal
 * Checkout
 * Chef
 * Chicken
 * Child
 * Choon
 * ChuckScript
 * Churro
 * Circuit Diagram
 * Circute
 * Cixl
 * CJam
 * CLC-INTERCAL
 * ClearBF
 * Clem
 * Clip
 * C-LONG
 * CLooP
 * Clue (Keymaker)
 * Clue (oklopol)
 * Clunk
 * COBOL
 * Cod
 * Codan
 * CodeFuck
 * Colambda
 * ComeFrom
 * Comefrom0x10
 * Come Here
 * Commercial
 * COMPLEX
 * Complode
 * CompressedFuck
 * Con-Text
 * Condit
 * Conedy
 * Confusion
 * Constantinople
 * ContinuousEquation
 * Conveyor
 * Cood
 * Cookie Cutter
 * CopyPasta Language
 * Cork
 * Countdown
 * Countercall
 * cQuents
 * Crab
 * Crainfuck
 * Crement
 * CRTL
 * CSL
 * CT
 * Ctonia
 * Cubix
 * Cufrab
 * Cupid
 * CUTLASS
 * Cvlemar
 * Cyclic ACIDIC

D

 * Daft
 * DALIS
 * Daoyu
 * Dark
 * Darmok
 * DateFuck
 * DBFV!
 * DBR
 * DcScript
 * dd/dd
 * Deadfish
 * Deltaplex
 * Dependently Typed Binary Lambda Calculus
 * Derpcode
 * Derplang
 * Deviating Percolator
 * DGOL
 * d1ffe7e45e
 * DigFill
 * Dimensifuck
 * Dimensions
 * Dirst
 * Dis
 * Divzeros
 * DL
 * DNA#
 * DOBELA
 * DOG
 * Dogescript
 * Doorspace
 * Dot
 * DoubleFuck
 * Drainfuck
 * Drift
 * Drive-In Window
 * DROL
 * DStack
 * Duck Duck Goose
 * Dumbf*ck
 * DumbScript
 * DUP
 * Dupdog
 * DZZZZ

E

 * Easy
 * Edge
 * EGL
 * ELANG
 * Electric BitFunk
 * Element
 * Elog
 * Emmental
 * Emo
 * Emoji-gramming
 * Emotebatch
 * Emoticon
 * EmuBug
 * EncryptFuck
 * Ende
 * Enema
 * Enigma-2D
 * Eniuq
 * Entropy
 * EntropyAssembler
 * Eodermdrome
 * EOOOL
 * EPL
 * EPOAQ
 * Espro
 * ETA
 * eTalk
 * ETAS
 * Etcha
 * Everett
 * evil
 * eWagon
 * excela
 * EXCON
 * Expload
 * Explode
 * Extended Foo
 * Extensible Crement

F

 * F
 * F^3, aka RTFM
 * Fackward
 * Fact
 * Factory
 * FakeASM
 * FALSE
 * FANJIX
 * ferNANDo
 * Fetlang
 * FFM/FFB
 * Figurehead
 * FileCode
 * FiM++
 * Finite Groups
 * Fishing
 * FISHQ9+
 * Fission
 * Fit
 * Flatline
 * Flip
 * FlogScript
 * flow_chart
 * Fluffle Puff
 * Flump
 * Fm
 * Fob
 * Focus
 * Folder not to be confused with
 * Folders
 * Foo
 * Foobar and Foobaz and Barbaz, oh my!
 * Footsteps
 * Formula
 * Forobj
 * Forte
 * Fortob
 * Fortuna
 * FOSCode (Abbreviated FOSC)
 * Fourfuck
 * Fourier
 * Fpulse
 * Fractran
 * Fractran++
 * FRAK
 * Fringespeak
 * Fromage
 * Fuck4
 * Fueue
 * Fugue
 * Full 0
 * Fumble
 * Funciton
 * Fünke
 * FURscript
 * Fuun DNA
 * Fuun RNA

G

 * G*
 * Gammaplex
 * Gaot++
 * GASOIL
 * Gbagbo
 * Gb_gates RISC
 * gecho
 * Gemooy
 * Genome
 * Geo
 * Geom
 * Geom++
 * Gibberish
 * Gibberish/JavaScript, another kind of Gibberish
 * Glass
 * Glava
 * Glypho
 * GML
 * GodScript
 * Goldfish
 * GolfScript
 * Golunar
 * Gopher
 * Gorispace
 * Goruby
 * Goto
 * GOTO++
 * GOTO 10
 * GPRX 3000
 * GrainFimple
 * GraNoLa/M
 * Graphical Brainfuck
 * Grass
 * Gravity
 * Grawlix
 * Gray Snail
 * GridScript
 * Grin
 * Grits
 * Grocery List
 * Groinfrick
 * Grusom Skjebne

H

 * Hack VM
 * Haifu
 * Half-Broken Car in Heavy Traffic
 * HALT
 * Hannah
 * Hanoiing
 * Hanoi Love
 * HaPyLi
 * Hardfuck
 * Hargfak
 * Harp
 * Hatemath
 * Hatter
 * hcbf
 * Headsecks
 * HeartForth
 * Hebe Script
 * Hello++
 * HELP
 * Hev
 * HEX
 * Hexadecimal Stacking Pseudo-Assembly Language
 * Hexagony
 * hexish
 * Higher Subleq
 * HighFive
 * Hollow
 * Home Row
 * Homespring
 * Hoon
 * Hopscotch
 * HSPAL
 * HSQ
 * Humo
 * Hunter
 * hydra
 * Hyperamycus
 * Hyper Set Language

I

 * iag
 * I/D machine
 * IDTM
 * Iexp
 * Ignition
 * IINC
 * ILLGOL
 * ImageFuck
 * Immi
 * Impera
 * Implieses
 * INCAL
 * Incident
 * Indirect
 * InfChessPro
 * Infinite Vector
 * InfiniTick
 * InfiniTUM
 * Inline
 * Insomnia
 * InSpace
 * Integ
 * Integral
 * INTERCAL
 * InterWater
 * Intolerant
 * Iota
 * IOTA-C0
 * IRC
 * Iris
 * ISCOM
 * itflabtijtslwi

J

 * J--
 * Japt
 * Jasp
 * Java2K
 * Javagrid
 * Jolverine
 * Jot
 * JSFuck
 * Jug
 * JUMP
 * JumpFuck
 * JUSTIF

K

 * Kangaroo
 * KanjiCode
 * Kappa
 * Karma
 * Kayak
 * Kelxquoia
 * KEMURI
 * Keya
 * KimL
 * Kinetosis
 * Kipple
 * Kitanai Tiny and dirty language
 * Kkipple
 * Klein
 * KlingonCode
 * Klon
 * Knight Shuffling Tower
 * Kolmogorov
 * K-on Fuck
 * kvikkalkul

L

 * Labyrinth
 * Laconic
 * Lamb
 * Lambda
 * Lambdastack
 * Lambda: the Gathering
 * LAMPA
 * Langar.io
 * Last ReSort
 * Lazy
 * Lazy Bird
 * Lazy K
 * l33t
 * Lenta
 * Leszek
 * Lhooq
 * Libertas
 * Libra
 * LICE
 * Ligature Machine
 * Light Pattern
 * Lii
 * Limp
 * Linguine
 * LINR
 * Liquid
 * ListLang
 * LLL
 * LNUSP
 * LOCK
 * Logical
 * Logicode
 * LOLA
 * LOLCODE
 * L00P
 * Loose Circular Brainfuck (LCBF)
 * Lo'reran
 * Lost
 * Luigi
 * Ly

M

 * Macmac
 * Madbrain
 * Madness
 * Magenta
 * Magic
 * Magic-1
 * Magicard!
 * MagiStack
 * MailBox
 * Malbolge
 * Malbolge Unshackled
 * Mang
 * Manufactoria
 * Marbelous
 * MarioLANG
 * Mascarpone
 * MashedPotatoes
 * MATL
 * Maybe Later
 * Maze
 * McCulloch's second machine
 * McCulloch's third machine
 * M-code
 * MDPN
 * MechaniQue
 * Memfractal
 * Memfuck
 * memPanic
 * mep
 * Meq
 * Metatape
 * Metropolis
 * MIBBLLII
 * Mice in a maze
 * Micro
 * Microscript
 * Migol
 * MiLambda
 * Mimsy
 * mindfunc
 * mindscrew
 * Mineso
 * MiniBitMove
 * Miniflak
 * Minifuck
 * Minifuck-2D
 * Minim
 * Minimal
 * Minimal-2D
 * MiniMAX
 * MiniPig
 * MinISCule
 * MiniStringFuck
 * miniUSPL
 * Minks
 * Minus
 * MISC
 * MISC-x86
 * MIX
 * MIX (Knuth)
 * MKBL-LN
 * MMIX
 * Mmmm
 * MNNBFSL
 * Mobius
 * ModanShogi
 * MonkeyCode
 * Monkeys
 * MONOD
 * Mornington Crescent
 * Mostawesomeprogramminglanguage
 * Mouse
 * MSG
 * MSM
 * MuFuck
 * MUMON
 * Muriel
 * Musical notes
 * Musical-X
 * Muxcomp
 * M×N-Dimensional Brainfuck
 * Mycelium
 * Myth
 * My Unreliable Past

N

 * Nairb
 * Nandarin
 * Nandypants
 * Neg
 * NegaPosi
 * Nest
 * NetFuck
 * Network Headache
 * Neurosis
 * Nevermore
 * Nhohnhehr
 * Niblet
 * NICE
 * Nietzsche
 * Nock
 * Noisett
 * noit o' mnain worb
 * Nonsense Query Lists
 * Noobinary
 * Noodle Soup
 * NOR
 * NoRAL
 * Norfuck
 * Nors
 * Nothing
 * Not The Main Worb
 * nouse
 * Novice
 * Nqubl
 * NRSRSSOMN
 * NSFW
 * NTCM
 * NucleotideBF (nBF)
 * NULL
 * Number Factory
 * Numberix
 * Numberwang
 * Numeric Batch
 * Numeric Topline
 * Numobin
 * NUMPAD
 * Nyarlathotep
 * Nybbleist

O

 * O
 * ObCode
 * Obfuna
 * Obfuscated Tiny C‎‎
 * Object
 * Object disoriented
 * Object oriented thue
 * ObjectPar
 * ODDBALL
 * Odtizuda
 * OGEL
 * OIL
 * OISC
 * Olvasható
 * OM
 * Omam
 * Omegaplex
 * Omgrofl
 * OneFuck
 * onoz
 * Oof!
 * OOLANG
 * Oozlybub and Murphy
 * Optimism
 * Ora
 * Oracle
 * ORK
 * Oroogu
 * Orthagonal
 * OrthINTERCAL
 * Orthogonal
 * Ouroboros
 * Owhelgossip
 * Owk
 * Owl
 * Ozone

P

 * P
 * P′′
 * P1eq
 * Paintfuck
 * Paintfuck+
 * pairs
 * Pancake Stack
 * Parenthesis Hell
 * Parenthetic
 * Parnassus
 * PATH
 * Pavia
 * pax
 * pb
 * pbrain
 * Perl
 * Perligata
 * Petrovich
 * PHAWN
 * Philosophy Script
 * PHL 1.0
 * Pi
 * Pieces
 * Piet
 * Piet-Q
 * PingPong
 * Pinocchio
 * Pirandello
 * Pit
 * Platts
 * Please Porige Hot
 * PL/MIX
 * Pluso
 * PNID
 * POGA-INTERCAL
 * PoGo
 * PointerB
 * PointerTape
 * Pointy
 * Poison
 * PokéBattle
 * Polynomial
 * Poochiewuddledumpling-Boobledarling
 * Poohbear
 * Portable Minsky Machine Notation
 * Portia
 * Powerlist
 * PPAP++
 * PREFIX
 * Prelude
 * Procedural Footnote Language
 * ProgFk
 * PROLAN/M
 * Proof
 * PureStack
 * Purple
 * Puzzlang
 * Pyth
 * PZAB

Q

 * Q
 * QaSaC
 * Q-Bal
 * Qdeql
 * QFL
 * Q-Ref
 * Quantum brainfuck
 * Quantum Dimensions
 * QUATRE-CALC
 * Qugord
 * Quiney
 * Quipu
 * QUOTE
 * Quylthulg
 * Qwertycode
 * Qwerty Reverse Polish Notation
 * QWOP

R

 * Radixal!!!!
 * Ragaraja
 * RAGE!!!
 * Rail
 * Rain
 * RAM0
 * RAND
 * RANDo
 * Rand.Next
 * Random
 * rao
 * Rasen
 * RCEM
 * ReactionCan
 * Real Fast Nora's Hair Salon 3: Shear Disaster Download
 * Reaper
 * REBEL
 * Recurse
 * RecurseMe
 * Redcode
 * REDGREEN
 * Refract
 * Refunge
 * RegexPL
 * REGXY
 * reMorse
 * rename
 * Replace
 * Replacefuck
 * REsKrIb!lo
 * RESOL
 * ResPlicate
 * ReThue
 * Retina
 * RETURN
 * Rev
 * Revaver
 * Revaver2pi
 * REVER
 * REverge
 * REVERSE
 * Reversible-2D
 * Reversible Brainfuck
 * Revomer
 * rflct
 * RFOL
 * Rhotor
 * RingCode
 * RinGy
 * Ririsu
 * RISBF
 * rLS
 * RNA
 * Roadrunner
 * Roco
 * ROOP
 * Rotary
 * RPOS
 * RSSB
 * RTFM
 * RU
 * RUBE
 * RubE On Conveyor Belts
 * RUM
 * RunR
 * RWLR

S

 * SADOL
 * Sally
 * Sansism
 * Sbeezg
 * SBN
 * SCAB computer
 * Scan
 * Sceql
 * Schmuu
 * Sclipting
 * Scotty
 * Scrip7
 * ScripTur
 * SCRUBS4U
 * Selector
 * Self-modifying Brainfuck
 * Self-modifying Puzzlang
 * Semi-quantum
 * SendStuff
 * Ser2
 * Seriously
 * Set
 * SGMJQFuck
 * Shakell
 * Shakespeare
 * Shelta
 * Shoopuf
 * Shove
 * Shuffle
 * Silberjoder
 * Sillycon
 * S.I.L.O.S
 * Simplefunge
 * Single Four
 * Skastic
 * Skull
 * Skull+
 * Slash-01
 * Slim
 * Smallfuck
 * small s.c.r.i.p.t.
 * SMATIMU
 * SMATINY
 * SMETANA
 * SMIL
 * Smilefuck
 * SMITH
 * SMITH#
 * SMITHb
 * Smu
 * Smurf
 * Snack
 * Snowflake
 * Snowman
 * SNUSP
 * SockZ
 * Somnypna
 * Sonata
 * SON-OF-UNBABTIZED
 * SORTA
 * Sorted!
 * Sortle
 * SoT
 * Spaghetti
 * SPAM/1
 * Spaz
 * Spiral
 * SPL
 * Splinter
 * Spoon
 * Spyrodecimal
 * Sqirrel - Peter
 * SQRT
 * Squishy2K
 * SSBPL
 * StackBeat
 * Stack Cats
 * Stacker
 * StackFlow
 * Stacking
 * Stackish
 * Stackmill
 * Stackstack
 * StackStacks
 * Stack Up
 * StaPLe
 * Staq
 * Stasis
 * StateFlip
 * Stlang
 * Stlisp
 * STOD
 * stones
 * Strato
 * Strelnokoff
 * Stue
 * STXTRM
 * Subleq
 * Subskin
 * Subterra
 * Subtle cough
 * Subtractpocalypse
 * Suffolk
 * suicide
 * SUL
 * Sultan's daughter
 * SumaMoito
 * SuperPar
 * Super Stack!
 * Surface
 * Surtic
 * Suxesol
 * Suzy
 * SVM
 * Switchy
 * SYCPOL
 * SyL
 * Symball
 * Symbolic Brainfuck
 * Symesol
 * Symple-X
 * SynDev

T

 * Table
 * Tableaux
 * Tables
 * Tag
 * TaiDoKu
 * Takeover
 * Taktentus
 * Tamerlane
 * Tampio
 * TAPASM
 * TapeBagel
 * Taxi
 * tbf
 * Tedius
 * Tellurium
 * TempoVar
 * Terse
 * TEWELSWAC
 * TEWNLSWAC
 * Tg
 * Th
 * thaM
 * The Amnesiac From Minsk
 * The Great Spell
 * Theoretica
 * TheSingularity
 * TheSquare
 * thETA
 * The Waterfall Model
 * This=That
 * This=That 2.0
 * thotpatrol
 * THRAT
 * Threaded INTERCAL
 * Three Star Programmer
 * Thubi
 * Thue
 * Thutu
 * Tick
 * timefuck
 * Time Out
 * TinCan
 * Tiny
 * tinyBF
 * TLWNN
 * TMCB
 * TMMLPTEALPAITAFNFAL
 * TLOWScript
 * Toadskin
 * TOD
 * Toi
 * Tome
 * Tonoco
 * Topaz
 * Topline
 * Tory
 * Track
 * Trajedy
 * TRANSCRIPT
 * Tree
 * Tri
 * Triangularity
 * Triforce
 * Trigger
 * TriINTERCAL
 * Triple Threat
 * Triskaidekalogophilia
 * Trite
 * Troupe
 * True
 * TrumpScript
 * TScript
 * tuplary
 * Turing Script
 * Turing Tumble
 * Tweak
 * Twimp
 * TWiRQ
 * Twocode
 * TwoDucks
 * TwoFiftyFive
 * Two Fifty Six
 * TwoStep
 * Typespam

U

 * UberGenes
 * Udage
 * Ultimate Programming Language to Take Over a Prison, Then He World
 * UM-32
 * UNBABTIZED
 * Unc
 * Uncomment
 * Underload
 * Unfuck
 * Unicat
 * Unispace
 * Univar
 * Unlambda
 * Unreadable
 * URSL
 * Uyjhmn n

V

 * V (DJMcMayhem)
 * V (FMota)
 * V--
 * var'aq
 * Varsig
 * VD3
 * Velato
 * Verbose
 * Versert
 * Version
 * Version2
 * Vertica Smile
 * Vigil
 * Viktor's amazing 4-bit processor
 * Villmark
 * VIOLET
 * Virgo
 * Vitsy
 * VL
 * Voclex
 * vowels
 * Vowels (2017)
 * Vrejvax
 * VTFF
 * VTL

W

 * Waduzitdo
 * Wait
 * Wake
 * WARP
 * WASD
 * WCDA - a golfing esolang with a community-updated command list
 * Wct
 * Weave
 * Wheat
 * When
 * Whenever
 * Whirl
 * Whitespace
 * Who
 * Wierd
 * Wigner's Fuckbuddy Is A (|Top> + |Bottom>)/√2
 * Wiki
 * Wiki Cyclic Tag
 * Wikiplia
 * WILSON
 * W-INTERCAL
 * Wittgen
 * Word!CPU
 * Wordfuck
 * Wordless
 * Wordy
 * WTFZOMFG
 * Wumpus
 * Wunnel
 * WUUI
 * WysiScript

X

 * X++
 * XBF
 * x-D
 * Xigxag
 * XRF
 * XS
 * XSM
 * X.so
 * XTW

Y

 * Y
 * Y (programming language)
 * Y86
 * YABALL
 * Ybc
 * Yboy
 * Yellow Four Code
 * You are Reading the Name of this Esolang
 * Your Minsky May Vary
 * Ypsilax

Z

 * Z
 * Zetaplex
 * Ziim
 * ZOMBIE
 * Zot
 * ZOWIE
 * ZT
 * ZTOALC L
 * Zucchini
 * ZZZ