The Jamaican dollar has been the currency of Jamaica since 1969. It is often abbreviated to J$, the J serving to distinguish it from other dollar-denominated currencies. It is divided into 100 cents, although cent denominations are no longer in use as of 2018. Goods and services may still be priced in cents, but cash transactions are now rounded to the nearest dollar.

Dollar is the name of more than 25 currencies. The United States dollar, named after the international currency known as the Spanish dollar, was established in 1792 and is the first so named that still survives. Others include the Australian dollar, Brunei dollar, Canadian dollar, Eastern Caribbean dollar, Hong Kong dollar, Jamaican dollar, Liberian dollar, Namibian dollar, New Taiwan dollar, New Zealand dollar, Singapore dollar, Trinidad and Tobago Dollar and several others. The symbol for most of those currencies is the dollar sign $ in the same way as many countries using peso currencies. The name "dollar" originates from Bohemia and a 29 g silver-coin called the Joachimsthaler.