- Netherlands 2001
- Belgium 2003
- Canada 2003–05 (provincially in 2003, nationally in 2005)
- Massachusetts (US) 2004
- Spain 2005
- South Africa 2006
- California (US) 2013
- Norway 2009
- Sweden 2009
- Connecticut (US) 2009
- Iowa (US) 2009
- Vermont (US) 2009
- Washington DC (US) 2009
- Coquille Indian Tribe (Oregon) 2009
- Mexico City (Mex) 2010
- Portugal 2010
- Iceland 2010
- Argentina 2010
- New Hampshire (US) 2010
- New York state (US) 2011
- Quintana Roo (Mexico) 2011
- Suquamish Indian Tribe (Washington) 2011
- Maine 2012
- Maryland 2013
- Uruguay 2013
- New Zealand 2013
- Delaware 2013
- Little Traverse Bay Bands of Odawa Indians (Michigan) 2013
- Rhode Island 2013
- Minnesota 2013
- France 2013
- Brazil 2013
- Hawaii 2013
- New Jersey 2013
- New Mexico 2013
- England 2014
- Wales 2014
- Scotland 2014
- Alaska 2014
- Arizona 2014
- Colorado 2014
- Idaho 2014
- Illinois 2014
- Montana 2014
- Nevada 2014
- North Carolina 2014
- Oklahoma 2014
- Oregon 2014
- Pennsylvania 2014
- South Carolina 2014
- Utah 2014
- Virginia 2014
- West Virginia 2014
- Wisconsin 2014
- Wyoming 2014
- Luxembourg 2015
- Guam 2015
- Pitcairn Islands 2015
- Chihuahua 2015
- United States 2015
- Greenland 2015
- Guerrero 2015
Places where same-sex marriages are recognised but not performed
- Israel 2006
- Mexico (all states) 2010
- Tasmania (Aus) 2010
- Queensland (Aus) 2011
- New South Wales 2014