Sultan Muhammad Mu'iz ud-din Iskander ibni al-Marhum Shah Ghazi al-Hasan 'Izz ud-din or Kalhu Banda'arain was the Sultan of the Maldives from 1774 - 1779. He succeeded when his elder brother abdicated.
He died in Malé on 13 September 1779 and was succeeded by Hassan Nooraddeen I.