Dadao

Dadao, formerly romanized ta-tao, may refer to:


 * Dadao (大刀, p dàdāo, lit. 'big knife'), a machete-like variety of the Chinese sword dao
 * "The Sword March", a Chinese song during the Second Sino-Japanese War (World War II) that begins Dadao!
 * Tao, the "Great Way" (大道, p Dàdào) of Chinese philosophies and religions
 * The Great Way Government of Shanghai (1937–38) during the early stages of the Second Sino-Japanese War (World War II)