Tracy Island is the secret headquarters of the International Rescue organisation in the 1960s British Supermarionation television series Thunderbirds and its adaptations. In the original series, the heavily-camouflaged island is located in the South Pacific Ocean and is home to the Tracy family, scientists Brains and Tin-Tin, and housekeeper Kyrano. The name "Tracy Island" originates in Thunderbirds comic strips and other tie-in media; in the series itself, the characters refer to it simply as International Rescue's "base".