France became the fourteenth country to legalise same-sex marriage on Saturday after President Francois Hollande signed the measure into law following months of bitter political debate and protests. The law also legalises gay adoption.
Here is a breakdown of nations with similar laws on the books:
Netherlands: On April 1, 2001 the Netherlands became the first country in the world to legalise same-sex marriage, with the same rights as heterosexuals. Includes the right to adopt.
Belgium: Homosexual couples in Belgium have almost the same rights as heterosexuals. They won the right to marry in 2003 and in 2006 parliament voted into law a bill allowing homosexual couples to adopt children.
Spain: In 2005 Spain became the third member of the European Union to pass a law allowing same-sex marriages. Gay couples can adopt children, whether they are married or not.
Canada: Canada adopted a national law allowing gays to marry and adopt in July 2005, though most provinces had already allowed same-sex unions before that date.
South Africa: The country legalised same-sex unions and adoptions by gay couples in November 2006, becoming the first African nation to do so.
Norway: A 2009 law allowed homosexuals to marry and adopt children. Civil partnerships have existed in the country for 20 years.
Sweden: Sweden's homosexuals have been allowed to wed in religious or civil ceremonies since May 2009.
Portugal: Under a 2010 law Portugal legalised gay marriage, while excluding the right to adoption.
Iceland: Prime Minister Johanna Sigurdardottir married her long-time partner in June 2010 as a new law legalising homosexual marriages came into force. Same-sex couples who have lived together for at least five years have had the right to adopt children since 2006.
Argentina: Gays in Argentina became the first on the South American continent to be able to wed and adopt, after legislation passed on July 14, 2010.
Denmark: Denmark, the first country in the world to allow gay couples to enter into civil unions in 1989, voted overwhelmingly in favour of allowing homosexuals to marry in the state Evangelical Lutheran Church in June 2012.
Uruguay: Uruguay voted in April to allow same-sex marriages nationwide, making it only the second Latin American country to do so.
New Zealand: New Zealand on April 17 became the first Asia-Pacific country to legalise same-sex marriage, after a decades-long campaign.
Gay couples can marry in nine US states, as well as in the capital Washington, while parts of Mexico also allow same-sex marriage.
Brazil this month gave a de facto green light to same-sex marriages after its National Council of Justice ruled that government offices could issue marriage licenses to gay couples without having to wait for Congress to pass a law allowing gay unions.
Britain: Same-sex couples in Britain have had the right to live in civil partnerships since 2005 but cannot marry. British lawmakers voted in February in favour of controversial legislation allowing gay marriage, despite fierce opposition from members of Prime Minister David Cameron's Conservative party.
The bill has since been scrutinised by a committee of lawmakers and will be debated again in the lower House of Commons on Monday, followed by a vote on Tuesday. If the vote passes, the bill will go before the upper chamber, the House of Lords, before becoming law.
A number of other countries have adopted laws that recognise civil partnerships and give couples more or less the same rights as heterosexuals.
Countries to have recognised civil unions without yet accepting gay marriage include Germany (2001), Finland (2002), the Czech Republic (2006), Switzerland (2007) and Colombia and Ireland (both 2011).