Acer tonkinense is an Asian species of maple. It has been found in southwestern China (Guangxi, Guizhou, Tibet, Yunnan) and northern Indochina (Vietnam, Thailand, Myanmar).
Acer tonkinense is a deciduous tree that is up to 12 meters tall, with smooth brown bark. Its leaves are non-compound, up to 17 cm wide and 15 cm across, thick, and usually with 3 lobes.