Ntare II Rutaganzwa Rugamba (c. 1800 - c. 1850) was the king of Burundi. He was the son of king Mwambutsa I Mbariza and Msabiyije, a wife from the influential Bashoka Tutsi clan.[1] The early years of his reign began with a regency, which was common in Burundian royal history.
Ntare's inherited kingdom was approximately half the size of the present-day Burundi. Early in his rule, he came into conflict with Nsoro Nyabarega, the ruler of Bugesera. Eventually, around 1840, Ntare conquered the Buyogoma with the support of his son Rwasha. He achieved the greatest expansion in the history of Burundi, doubling the territory.
Ntare II was succeed by Mwezi IV of Burundi, also known as Mwezi Gisabo.[2]