MS Superfast XI is a fast jumbo ropax ferry currently operating between Patras-Igoumenitsa and Ancona under Superfast Ferries.

She was built in 2002 by the Howaldtswerke-Deutsche Werft (HDW) at Kiel, Germany for Attica Group's wholly owned subsidiary Superfast Ferries.

The Superfast XI is the first ship in a pair of fast ferries built by HDW for Superfast Ferries' Adriatic Sea services.

Her Sister ship is Superfast XII, which was deployed on the same route.

The ship was also used for a British children's show called Me Too!, which aired between 2006 and 2007 and was used as part of some episodes.