Ngoyo was a kingdom of the Woyo ethnic group, located in the south of Cabinda and on the Atlantic coast of Central Africa, just north of the Congo River. In the 13th century it formed part of a confederation led by Vungu. Ngoyo tradition held that the kingdom's ancestors were among the earliest settlers in the area, leading their chiefs to title themselves the nfumu nsi ("lords of the earth"). The capital was Mbanza Ngoyo.
In the 1630s Ngoyo was invaded by the forces of Soyo, and the son of the ruler of Soyo was installed as ruler of Ngoyo. It is not clear who the following rulers were for the next few decades.