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- Talmy, Leonard (United States), cognitive linguistics, semantics, Yiddish language, Native American languages
- Tannen, Deborah Frances (United States, 1945–), discourse analysis
- Tarpent, Marie-Lucie (Canada), Tsimshianic languages
- Teeter, Karl van Duyn (United States, 1929–2007), Algic languages, endangered languages
- Thieberger, Nicholas (Australia), Indigenous Australian languages
- Thomas, Calvin (United States, 1854–1919), Germanic languages, German language
- Thomason, Sarah Grey (United States), language contact, historical linguistics, typology, Montana Salish
- Thompson, John Eric Sidney (UK, 1898–1975), Maya languages, Maya hieroglyphics
- Thompson, Sandra A. (United States), syntax, discourse analysis, Mandarin language
- Tokieda Motoki (Japan, 1900–1967), Japanese language
- Tolkien, John Ronal Reuel (UK, 1892–1973), Old English language, constructed languages, Sindarin, Quenya
- Toporišič, Jože (Slovenia, 1926–), Slovene language
- Trager, George Leonard (United States, 1906–1992), phonemics, paralanguage, semantics
- Trask, Robert Lawrence (United States, 1944–2004), Basque language, historical linguistics, origin of language
- Trubetzkoy, Nikolai Sergeyevich (Russia/Austria, 1890–1938), structural linguistics, morphology, phonology
- Trudgill, Peter (UK, 1943–), sociolinguistics, English language, dialectology
- Tuite, Kevin (United States, 1954–), Caucasian languages, Georgian language
- Turner, Mark (United States), cognitive linguistics
Read more about this topic: List Of Linguists