L
- Labov, William (United States, 1927–), sociolinguistics, phonology, English language
- Lado, Robert (United States, 1915–1995), applied linguistics, contrastive analysis
- Ladefoged, Peter Nielsen (UK/United States, 1925–2006), phonetics, endangered languages
- Laird, Charlton (United States, 1901–1984), lexicography, English language
- Lakoff, George P. (United States, 1941–), cognitive linguistics, transformational grammar, generative semantics, syntax
- Lakoff, Robin Tolmach (United States, 1942–), sociolinguistics
- Lamb, Sydney MacDonald (United States, 1929–), stratificational grammar, Native American languages, historical linguistics, computational linguistics
- Lambdin, Thomas Oden (United States), Semitic languages, Egyptian language
- Lane, Harlan (United States, 1936-), speech, Deaf culture, sign language
- Langacker, Ronald W. (United States, 1942–), cognitive linguistics
- Langdon, Margaret (United States, d. 2005), Native American languages
- LaPolla, Randy J. (United States), morpho-syntax, Chinese, Qiang, Rawang
- Lasersohn, Peter (United States), semantics
- Lasnik, Howard (United States, 1945–), syntax
- Lawler, John (United States), syntax, semantics, computational linguistics
- Laycock, Donald (Australia, —1988), languages of Papua New Guinea
- Lee, Joan H. (Canada, 1981-), text messaging
- Leech, Geoffrey (UK) applied linguistics, English language
- Lees, Robert (United States, 1922–1996), machine translation
- Lehiste, Ilse (United States, 1922–2010), Phonetics, Estonian language, Serbo-Croatian, phonology
- Lehmann, Winfred P. (United States, 1916–2007), historical linguistics, Proto-Indo-European language
- Lepsius, Karl Richard (Germany, 1810–1884), Egyptian language, Nubian languages, phonology
- Leskien, August (Germany, 1840–1916), comparative linguistics, Baltic languages, Slavic languages
- Levinson, Stephen C. (UK/Netherlands), pragmatics
- Levstik, Fran (Slovenia, 1831–1881), Slovene language
- Li Fanwen (PR China, 1932–), Tangut language
- Li Fanggui (PR China/United States, 1902–1987), Mattole language, Tai languages, Old Chinese, Tibetan language
- Li, Paul Jen-kuei (Taiwan), Formosan languages, Austronesian languages, historical linguistics, lexicography
- Liberman, Alvin Meyer (United States, 1917–2000), speech perception, phonology
- Liberman, Anatoly (Russia/United States), etymology, Germanic languages
- Liberman, Mark (United States), phonetics, prosody
- Lieber, Rochelle (United States, 1954–), morphology, syntax, lexical semantics
- Lieberman, Philip (United States, phonetics, language evolution
- Lisker, Leigh (United States, 1918–2006), phonetics, Dravidian languages
- Local, John (UK, 1947–), phonetics, phonology, conversation analysis
- Lounsbury, Floyd Glenn (United States, 1914–1998), Native American languages, Mayan languages
- Lowman, Guy Sumner, Jr. (United States, 1909–1941), phonetics
- Ludlow, Peter (United States, 1957–), syntax, semantics
- Lukoff, Fred (United States, 1920–2000), Korean language, phonology
- Lunde, Ken (United States, 1965–), East Asian languages
- Lynch, John (Australia, 1946–), Austronesian languages, historical linguistics
Read more about this topic: List Of Linguists