L0
L6
LabVIEW
Lace
LD
LADE
LADY
Lagoona
Lakota
LALO
LAMBDA
lambda-Prolog
Lambda-RTL
LAMBIT/L
LAMINA
Language H
Laning and Zierler
LAP
LAP4
LAPSE
Larch
Larch/Ada
Larch/CLU
LaTeX
LAU
LAURE
LAVA
LAX
LCC
LCL[1]
LCL[2]
LCS
LDL
LDL1
LDT
LE/1
LEAF[1]
LEAF[2]
Lean
LEAP
LECOM
Leda
LeFun
Legion
LEGOL[1]
LELAND
le-lisp
LENS
Leo
Lex[1]
Lex[2]
LG
LGDF
LGEN
LGN
Liana
LIDO
LiE
LIFE
LIFOO
LIL[1]
LIL[2]
Lila
LILEAnna
LILITH
Limbo
LIMDEP
LIMP
Linc
Lincoln Reckoner
Linda
LindaLISP
Lingo
LINGOL
LIPL
LIS
LISA[1]
LISA[2]
LISP
LISP 2
LISP70
LISP A
LispKit Lisp
Lisp-Linda
LISP Machine LISP
Lisptalk
LITHE
LITTLE
Little Smalltalk
LLM3
LM3
LML[1]
LML[2]
LNF
L&O
LO
LogC
LOGEL
LOGIC
Logic Design Language
LOGIN
LOGLAN
LOGLISP
LOGO
LOGOL
LOLITA
Lolli
LOM
LOOK
LOOKS[1]
LOOKS[2]
LOOPN
LOOPS
LOP
LORE[1]
Lore[2]
LOREL
LOTIS
LOTOS
Lout
Low-Ada
LOWL
LPC
LPG[1]
LPG[2]
LPL[1]
LPL[2]
LPS
LRLTRAN
LSL[1]
LSL[2]
LSYD
LT-2
LTR
LTR2
LTR3
Lua
LUCID[1]
Lucid[2]
Lucinda
Luck
Lucy
LUKKO
LUSTRE
LYaPAS
Lygon
LYNX
LYRIC