Anthemius (lived 5th–6th century AD)

Greek mathematician and architect. He created the new design and began the rebuilding of Hagia Sophia in Constantinople (now Istanbul) for Byzantine emperor Justinian after the church was destroyed by fire in 531. Anthemius wrote several mathematical treatises, for example On Burning Mirrors, which describes the focal properties of parabolas and ellipses.

He also worked as an engineer and was employed to repair flood defences at Daras.