The ariary (sign: Ar;[1] ISO 4217 code MGA) is the currency of Madagascar.

It is notionally subdivided into 5 iraimbilanja and is one of only two non-decimal currencies currently circulating (the other is the Mauritanian ouguiya).

Iraimbilanja means literally "one iron weight" and was the name of an old coin worth 1⁄5 of an ariary.

However, as of May 2023, the unit is effectively obsolete since the iraimbilanja has practically no purchasing power, and the coins have fallen into disuse.

The ariary replaced the franc as the official currency of Madagascar on January 1, 2005.

[2] Coins and banknotes were denominated in both the official francs and the semi-official ariary and iraimbilanja since 1961.

73-025, taking over the functions of the Institut d’Émission Malgache, including the issuance of banknotes.

However, in 1998, these notes were replaced by new issues which only gave the franc denominations in numerals.