Cayman Brac is an island that lies about 143 km northeast of Grand Cayman in the Caribbean Sea. It is about 19 km long, with an average width of 2 km. Its terrain is the most spectacular of the three Cayman Islands. "The Bluff", a massive central limestone outcrop, rises steadily along the length of the island up to 43 m above the sea at the eastern end.

The island is named after its most prominent feature, "The Bluff" because Brac is a Gaelic name for a bluff.