António I Nvita a Nkanga was a mwenekongo of the Kingdom of Kongo who ruled from 1661 to his defeat and death at the Battle of Mbwila on October 29, 1665. He was elected following the death of King Garcia II. Like the former king, António I pursued a foreign policy focused at removing the Portuguese from his region.
King António died with no heir apparent. Many of the men who could have taken his place died or were captured at the battle including his seven-year-old son. The ruling House of Kinlaza and the opposing House of Kimpanzu fought furiously over the throne causing a devastating civil war. The heyday of the Kingdom of Kongo was at an end, and it would take forty years for the kingdom to be reunited.