Kanstancyja Bujà Âo () (1893–1986) was a Belarusian poet and playwright.
Bujà Âo's first publication in 1909 was Mound Flower, edited by Janka Kupaà Âa. The main themes of her poems, which often relied on folklore, were on peasant life in Belarus before 1917, and World War II heroism. One of her most notable poems was I Love Our Land.