Korean Series
The Korean Series is the final championship series of the KBO League. It has been held since the KBO League's first season in and is the final series of the post-season play-offs. From to 2013, the winner of the Korean Series went on to play in the Asia Series.
The teams finishing in third and fourth place in the regular season face each other in the first round of the play-offs.It is called Semi play-offs. And the winner of the Semi play-offs faces the team that finished in second place during the regular season.It is called Play-offs. And the winner of that round faces the team that finished in first place for the championship in the Korean Series. The Wild Card Game between the teams finishing in fourth and fifth place in the regular season was added to the KBO League postseason in 2015.
Korean Series winners
* Note: Winning team and losing team columns indicate the number of times that team has appeared in a Korean Series as well as each respective teams' Korean Series record to date.* Note: Games in the KBO League have a limit to the number of extra innings and/or time that could be played before being officially declared a tied game. When post-season games were declared tied, they had to be replayed.
Series appearances by club
* Note: In the sortable table below, teams are ordered first by number of appearances, then by number of wins, and finally by year of first appearance. In the "Season" column, bold years indicate winning Korean Series appearances.| Series appearances | Team | Wins | Losses | Win % | Season |
| 17 | Samsung Lions | 7＋1 | 10 | .412 | 1982, 1984, 1985, 1986, 1987, 1990, 1993, 2001, 2002, 2004, 2005, 2006, 2010, 2011, 2012, 2013, 2014, 2015 |
| 13 | Doosan Bears | 6 | 7 | .462 | 1982, 1995, 2000, 2001, 2005, 2007, 2008, 2013, 2015, 2016, 2017, 2018, 2019 |
| 11 | Kia Tigers | 11 | 0 | 1.000 | 1983, 1986, 1987, 1988, 1989, 1991, 1993, 1996, 1997, 2009, 2017 |
| 8 | SK Wyverns | 4 | 4 | .500 | 2003, 2007, 2008, 2009, 2010, 2011, 2012, 2018 |
| 6 | Hyundai Unicorns | 4 | 2 | .667 | 1994, 1996, 1998, 2000, 2003, 2004 |
| 6 | LG Twins | 2 | 4 | .333 | 1983, 1990, 1994, 1997, 1998, 2002 |
| 6 | Hanhwa Eagles | 1 | 5 | .167 | 1988, 1989, 1991, 1992, 1999, 2006 |
| 4 | Lotte Giants | 2 | 2 | .500 | 1984, 1992, 1995, 1999 |
| 2 | Kiwoom Heroes | 0 | 2 | .000 | 2014, 2019 |
| 1 | NC Dinos | 0 | 1 | .000 | 2016 |
| 0 | KT Wiz | 0 | 0 |