Malta
euro (EUR) as of 1 January 2008; Maltese lira (MTL) before then

Marshall Islands
US dollar (USD)

Mauritania
ouguiya (MRO)

Mauritius
Mauritian rupee (MUR)

Mayotte
euro (EUR)

Mexico
Mexican peso (MXN)

Micronesia, Federated States of
US dollar (USD)

Moldova
Moldovan leu (MDL)

Monaco
euro (EUR)

Mongolia
togrog/tugrik (MNT)