Castara is a picturesque seaside village on the Windward (northeast) coast of the island of Tobago, the smaller of the two islands in the twin-island Republic of Trinidad and Tobago. Castara's economy is dependent primarily on fishing and agriculture, with tourism playing an increasingly important role since the 1990s.

The most famous son of Castara is the Castara Kid, former Prime Minister and President of Trinidad and Tobago, A.N.R. Robinson.