Great Barrier may refer to:

Places Great Barrier Island, in the north of New Zealand Great Barrier Reef, in the Coral Sea off the coast of Queensland in north-east Australia Gilf Kebir, Arabic for "the Great Barrier," a plateau in the New Valley Governorate of the remote southwest corner of Egypt Great Ice Barrier, a later 19th–early 20th century name for the Ross Ice Shelf, Antarctica

In fiction The Great Barrier (film), a 1937 British film "The Great Barrier" (Star Trek) The fourth episode of Law & Order: Criminal Intent (season 4)

See also Barrier (disambiguation)