Mauritius
Hindu 48%, Roman Catholic 23.6%, other Christian 8.6%,
Muslim 16.6%, other 2.5%, unspecified 0.3%, none 0.4% (2000 census)

Mayotte
Muslim 97%, Christian (mostly Roman Catholic)

Mexico
nominally Roman Catholic 89%, Protestant 6%, other 5%

Micronesia, Federated States of
Roman Catholic 50%, Protestant 47%,
other 3%

Moldova
Eastern Orthodox 98%, Jewish 1.5%, Baptist and other 0.5%
(2000)

Monaco
Roman Catholic 90%

Mongolia
Buddhist Lamaist 50%, none 40%, Shamanist and Christian 6%,
Muslim 4% (2004)

Montenegro
Orthodox, Muslim, Roman Catholic

Montserrat
Anglican, Methodist, Roman Catholic, Pentecostal,
Seventh-Day Adventist, other Christian denominations

Morocco
Muslim 98.7%, Christian 1.1%, Jewish 0.2%