| Country | Constitution |
| European Union | none note: the EU legal order, although based on a series of treaties, has often been described as "constitutional" in nature; the Treaty on European Union (TEU), as modified by the Lisbon Treaty, states in Article 1 that "the HIGH CONTRACTING PARTIES establish among themselves a EUROPEAN UNION ... on which the Member States confer competences to attain objectives they have in common"; Article 1 of the TEU states further that the EU is "founded on the present Treaty and on the Treaty on the Functioning of the European Union (hereinafter referred to as 'the Treaties')," both possessing the same legal value; Article 6 of the TEU provides that a separately adopted Charter of Fundamental Rights of the European Union "shall have the same legal value as the Treaties" |
| Falkland Islands (Islas Malvinas) | 1 January 2009 |
| Faroe Islands | 5 June 1953 (Danish constitution) |
| Fiji | enacted 25 July 1997; effective 28 July 1998; note - constitution encourages multiculturalism and makes multiparty government mandatory |
| Finland | 1 March 2000 |
| France | adopted by referendum 28 September 1958; effective 4 October 1958; amended many times note: amended in 1962 concerning election of president; amended to comply with provisions of 1992 EC Maastricht Treaty, 1997 Amsterdam Treaty, 2003 Treaty of Nice; amended in 1993 to tighten immigration laws; amended in 2000 to change the seven-year presidential term to a five-year term; amended in 2005 to make the EU constitutional treaty compatible with the Constitution of France and to ensure that the decision to ratify EU accession treaties would be made by referendum |
| French Polynesia | 4 October 1958 (French Constitution) |
| French Southern and Antarctic Lands | void |
| Gabon | adopted 14 March 1991 |
| Gambia, The | approved by national referendum 8 August 1996; effective 16 January 1997 |
| Gaza Strip | void |
| Georgia | adopted 24 August 1995 |
| Germany | 23 May 1949, known as Basic Law; became constitution of the united Germany 3 October 1990 |
| Ghana | approved 28 April 1992 |
| Gibraltar | 5 June 2006; came into force 2 January 2007 |
| Greece | 11 June 1975; amended March 1986 and April 2001 |
| Greenland | (June 2009) Act on Greenland Self Government |