Mswati III is Ngwenyama (King) of Eswatini and head of the Swazi royal family. He heads Africa’s last absolute monarchy, as he has veto power over all branches of government and is constitutionally immune from prosecution.

iNgwenyama is the title of the male monarch of Eswatini. In English, the title is sometimes translated as King of Eswatini. The iNgwenyama reigns together with the Ndlovukazi, a spiritual leadership position held by the iNgwenyama's mother or another female royal of high status.