| Championship | Champion | Date |
| MLS Cup 2025 | Inter Miami CF | December 6, 2025 |
| MLS Cup 2024 | LA Galaxy | December 7, 2024 |
| MLS Cup 2023 | Columbus Crew | December 9, 2023 |
| MLS Cup 2022 | Los Angeles FC | November 5, 2022 |
| MLS Cup 2021 | New York City FC | December 11, 2021 |
| MLS Cup 2020 | Columbus Crew | December 12, 2020 |
| MLS Cup 2019 | Seattle Sounders FC | November 10, 2019 |
| MLS Cup 2018 | Atlanta United FC | December 8, 2018 |
| MLS Cup 2017 | Toronto FC | December 9, 2017 |
| MLS Cup 2016 | Toronto FC | December 10, 2016 |
| MLS Cup 2015 | Portland Timbers | December 6, 2015 |
| MLS Cup 2014 | LA Galaxy | December 7, 2014 |
| MLS Cup 2013 | Sporting Kansas City | December 7, 2013 |
| MLS Cup 2012 | LA Galaxy | December 1, 2012 |
| MLS Cup 2011 | LA Galaxy | November 20, 2011 |
| MLS Cup 2010 | FC Dallas | November 21, 2010 |
| MLS Cup 2009 | Real Salt Lake | November 22, 2009 |
| MLS Cup 2008 | Columbus Crew | November 23, 2008 |
| MLS Cup 2007 | Houston Dynamo FC | November 18, 2007 |
| MLS Cup 2006 | Houston Dynamo FC | November 12, 2006 |
| MLS Cup 2005 | LA Galaxy | November 13, 2005 |
| MLS Cup 2004 | D.C. United | November 14, 2004 |
| MLS Cup 2003 | San Jose Earthquakes | November 23, 2003 |
| MLS Cup 2002 | LA Galaxy | October 20, 2002 |
| MLS Cup 2001 | San Jose Earthquakes | October 21, 2001 |
| MLS Cup 2000 | Sporting Kansas City | October 15, 2000 |
| MLS Cup 1999 | D.C. United | November 21, 1999 |
| MLS Cup 1998 | Chicago Fire FC | October 25, 1998 |
| MLS Cup 1997 | D.C. United | October 26, 1997 |
| MLS Cup 1996 | D.C. United | October 20, 1996 |