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The dinar (, ) is the name of the principal currency unit in several countries near the Mediterranean Sea, with a more widespread historical use. The English word "dinar" is the transliteration of the Arabic دينار (dīnār), which was possibly borrowed via the Syriac dīnarā from the Latin dēnārius.

The gold dinar (Arabic: ﺩﻳﻨﺎﺭ ذهب) is an Islamic medieval gold coin first issued in AH 77 (696–697 CE) by Caliph Abd al-Malik ibn Marwan. The weight of the dinar is 1 mithqal (4.25 grams or 0.137 troy ounces).

The Jordanian dinar (Arabic: دينار أردني; code: JOD; symbol: د.أ, unofficially abbreviated as JD) has been the currency of Jordan since 1950. The Central Bank of Jordan commenced operations in 1965 and became the sole issuer of Jordanian currency and central bank, in place of the Jordan Currency Board.

The modern gold dinar (sometimes referred as Islamic dinar or Gold dinar) is a proposed bullion gold coin, so far not issued as official currency by any national state. It aims to revive the historical gold dinar, which was a leading coin of early Islam. Advocates have suggested it could consist of minted gold coins (dinars) or of silver coins (dirhams).

A non-decimal currency is a currency that has sub-units that are a non-decimal fraction of the main unit, i.e. the number of sub-units in a main unit is not a power of 10. Historically, most currencies were non-decimal, though virtually all are now decimal.