Madagascar
19 August 1992 by national referendum
Malawi
18 May 1994
Malaysia
31 August 1957 (amended many times, latest in 2007)
Maldives
new constitution ratified 7 August 2008
Mali
adopted 12 January 1992
Malta
1964 constitution; amended many times
Marshall Islands
1 May 1979
Mauritania
12 July 1991
Mauritius
12 March 1968; amended 12 March 1992
Mayotte
4 October 1958 (French Constitution)