The WNBA celebrated its 25th anniversary during the 2021 season.
Of the 25 championships that have been handed out in the WNBA's history, six franchises are responsible for 21 of them.
A new champion could be crowned this season, as the Las Vegas Aces advanced to the 2022 WNBA Finals on Tuesday, defeating the Seattle Storm in the semifinals. This will mark the third time the franchise has advanced to the final round, but it has yet to win a championship.
The Aces will face either the Chicago Sky or Connecticut Sun in the 2022 WNBA Finals. With the series tied at 2-2, the Sky and Sun will battle it out in Game 5 on Thursday.
Full year-by-year list of WNBA champions
The Houston Comets won the first WNBA championship in 1997. It marked the first of four straight titles for the franchise that has since folded.
The Chicago Sky won the championship in 2021, marking the franchise's first title.
| Year | Winner |
| 1997 | Houston Comets |
| 1998 | Houston Comets (2) |
| 1999 | Houston Comets (3) |
| 2000 | Houston Comets (4) |
| 2001 | Los Angeles Sparks |
| 2002 | Los Angeles Sparks (2) |
| 2003 | Detroit Shock |
| 2004 | Seattle Storm |
| 2005 | Sacramento Monarchs |
| 2006 | Detroit Shock (2) |
| 2007 | Phoenix Mercury |
| 2008 | Detroit Shock (3) |
| 2009 | Phoenix Mercury (2) |
| 2010 | Seattle Storm (2) |
| 2011 | Minnesota Lynx |
| 2012 | Indiana Fever |
| 2013 | Minnesota Lynx (2) |
| 2014 | Phoenix Mercury (3) |
| 2015 | Minnesota Lynx (3) |
| 2016 | Los Angeles Sparks (3) |
| 2017 | Minnesota Lynx (4) |
| 2018 | Seattle Storm (3) |
| 2019 | Washington Mystics |
| 2020 | Seattle Storm (4) |
| 2021 | Chicago Sky |
Which WNBA team has won the most championships?
The Minnesota Lynx, Houston Comets and Seattle Storm have won the most championships in WNBA history with four each.
The Los Angeles Sparks, Phoenix Mercury and Dallas Wings (formerly Detroit Shock) are tied in second with three championships each.
No other team in WNBA history has won multiple championships.
| Rank | Team | Championships |
| 1. | Minnesota Lynx | 4 |
| Houston Comets | 4 | |
| Seattle Storm | 4 | |
| 2. | Los Angeles Sparks | 3 |
| Phoenix Mercury | 3 | |
| Dallas Wings | 3 |