Gelao (autonym: Kláo, Chinese: 仡佬 Gēlǎo, Vietnamese: Cờ Lao) is a dialect cluster of Kra languages in the Tai–Kadai language family. It is spoken by the Gelao people in southern China and northern Vietnam. Despite an ethnic population of 580,000 (2000 census), only a few thousand still speak Gelao. Estimates run from 3,000 in China by Li in 1999, of which 500 are monolinguals, to 7,900 by Edmondson in 2008. Edmondson (2002) estimates that the three Gelao varieties of Vietnam have only about 350 speakers altogether.