In Kongo mythology, Nzambi Mpungu is the creator god often called the Grand God.
Nzambi Mpungu, also written Nzambi Ampungu, is the supreme deity of traditional Kongo spirituality. He is associated with the sky, the sun, fire, change and the creation of the universe. His female counterpart is Nzambici, commonly connected with the moon and earth.
Kongo creation traditions describe an initial emptiness called mbûngi. Nzambi and Nzambici introduce a spark of fire called Kalûnga; as it grows, it produces the celestial bodies and life. This story is sometimes compared with the Big Bang, although that comparison is a modern interpretation rather than a claim that the traditions are scientific cosmology.
Portuguese visitors recorded the name by the early 16th century. During Christianization, missionaries used Nzambi Mpungu as a translation for the Christian God, which strengthened the association of the deity with a single male creator. Chukwu, Nyame and Unkulunkulu are creator figures from other African religious traditions, not the Kongo name.