Ilthan was an island in the Pirate Isles in the Sea of Fallen Stars.

Its natives were cyclopses who herded sheep. Its main feature was a large ruined city at the center of the island. A legend told that vengeful gods destroyed it. Pirates used the handful of harbors on the southern shores of the island on a temporary basis.[1]


  1. Steven E. Schend (1999). Sea of Fallen Stars. (TSR, Inc), p. 12. ISBN 0-7869-1393-2.