Pew Forum 6 January 2015
A growing number of governments around the world are considering whether to grant legal recognition to same-sex marriages. More than a dozen countries currently have national laws allowing gays and lesbians to marry, mostly in Europe and the Americas. In two other countries, including the United States, some jurisdictions allow same-sex couples to wed, while others do not.
The following is a list of nations that allow same-sex marriage, either nationwide or in certain jurisdictions.
http://www.pewforum.org/2013/12/19/gay-marriage-around-the-world-2013/
