Titania (/tɪˈtɑːniə, -ˈteɪ-/) is the largest moon of Uranus and the eighth-largest moon in the Solar System, with a diameter of 1,578 km (981 mi). Discovered by William Herschel in 1787, it is named after the queen of the fairies in Shakespeare's A Midsummer Night's Dream. Its orbit lies inside Uranus's magnetosphere.
Titania consists of approximately equal amounts of ice and rock, and is probably differentiated into a rocky core and an icy mantle. A layer of liquid water may be present at the core–mantle boundary. Its surface, which is relatively dark and slightly red in color, appears to have been shaped by both impacts and endogenic processes. Although Titania is covered with numerous impact craters reaching up to 326 kilometres (203 mi) in diameter, it is less heavily cratered than Oberon, the outermost of Uranus's five large moons.