Bhuvanaikabahu III (a.k.a. Vanni Buvaneka Bahu) was King of Dambadeniya in the 14th century, who reigned in the year 1325/6. He succeeded Parakkamabahu IV as King of Dambadeniya and was succeeded by Vijayabahu V.
According to local folklore, he was also responsible for the construction of the Kurunegala Lake.