- 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