Sycorax is one of Uranus' moons. It is the biggest retrograde non-spherical one of its moons.
Sycorax was found on September 6, 1997 by Brett J. Gladman, Philip D. Nicholson, Joseph A. Burns, and John J. Kavelaars. They found it using the 200-inch Hale telescope. They also found Caliban. Sycorax was given the designation S/1997 U 2.
Sycorax was confirmed as Uranus XVII. It was named after Sycorax, Caliban's mother in William Shakespeare's play The Tempest.