Nobatia or Nobadia (; Greek: Νοβαδἰα, Nobadia; Old Nubian: Ⲛⲟⲩⲃⲁⲇⲓⲁ, Noubadia) was an ancient African Christian kingdom in Lower Nubia and subsequently a region of the larger Nubian Kingdom of Makuria. Its name is often given as al-Maris in Arabic histories.