Ivan VI Antonovich, also known as Ioann Antonovich, was an infant emperor of Russia from October 1740 until he was overthrown by his cousin Elizabeth Petrovna in December 1741. He was only two months old when he was proclaimed emperor and his mother, Anna Leopoldovna, named regent, but the throne was seized in the coup after a year. Ivan and his parents were imprisoned far from the capital, and spent the rest of their lives in captivity.

The emperor and autocrat of all Russia, also translated as emperor and autocrat of all the Russias, was the official title of the Russian monarch from 1721 to 1917.