word | | Constitution |
| February | Algeria | 8 September 1963; revised 19 November 1976; effective 22 November 1976; revised 3 November 1988, 23 February 1989, 28 November 1996, 10 April 2002, and 12 November 2008 |
| February | Angola | adopted by National Assembly 5 February 2010 |
| February | Bahrain | adopted 14 February 2002 |
| February | Belgium | drafted 25 November 1830; approved by Congress 7 February 1831; entered into force 26 July 1831; amended many times; revised 14 July 1993 to create a federal state; in 1967 an official ... |
| February | Bolivia | 7 February 2009 |
| February | Burundi | ratified by popular referendum 28 February 2005 |
| February | Congo, Democratic Republic of the | 18 February 2006 |
| February | Cuba | 24 February 1976; amended July 1992 and June 2002 |
| February | Egypt | ... 1971; amended 22 May 1980, 25 May 2005, and 26 March 2007; note - constitution suspended by the military caretaker government 13 February 2011 and a new provisional constitution adopted 30 March 2011 |
| February | Holy See (Vatican City) | Fundamental Law promulgated by Pope JOHN PAUL II 26 November 2000, effective 22 February 2001 (replaced the first Fundamental Law of 1929) |
| February | Latvia | 15 February 1922; restored to force by the Constitutional Law of the Republic of Latvia adopted by the Supreme Council 21 August 1991; multiple amendments since |
| February | Mexico | 5 February 1917 |
| February | Namibia | ratified 9 February 1990, effective 12 March 1990 |
| February | Philippines | 2 February 1987, effective 11 February 1987 |
| February | Saint Lucia | 22 February 1979 |