The Trinidad and Tobago dollar is the official currency of Trinidad and Tobago, a twin-island nation in the Caribbean. There are several synonyms for this currency such as Trinidad dollar, TT dollar, and TTD. The Trinidad dollar is the common name used by the locals and is accepted in every store, restaurant and business establishment in Trinidad and Tobago. TT dollar is the international abbreviation used in banking and financial transactions. TTD is the official acronym used on foreign exchange markets and is recognized by foreign investors as the Trinidad and Tobago currency. Although the names may differ, the currency remains the same, and it is valued against other currencies in the world.