Alternate Names: Ngan, Phen, Tai Tho, “Thô” (pej.), Thu Lao, T’o
Dialects: Central Tày, Eastern Tày, Northern Tày, Southern Tày, Tày Bao Lac, Tày Trung Khanh, Thu Lao. Reportedly similar to Nung ,.
Genealogy:
Demographics: 1,630,000 in Viet Nam (2009 census).
Language Use: Also use Vietnamese [vie]. Used as L2 by Green Gelao [giq].
Language Development: Literacy rate in L1: 1%–5%. Literacy rate in L2: 50%–75%. Radio programs. Dictionary. Bible portions: 1938–1963.
Writing System: Latin
Nation of Origin: Viet Nam
Other Comments: Tày is an official ethnic community. Traditional religion, Christian.