This is a list of division champions (since 1969) and wild-card winners (since 1994) in Major League Baseball.

Division champions

indicates the winner of the World Series.

Four-division alignment (1969–1993)

† Due to the strike that took place in the middle of the 1981 season, Major League Baseball crowned both a "first half" (pre-strike) and "second half" (post-strike) division champion. The teams were then matched against each other in a special division series. Oakland and New York won the 1981 American League Division Series while Los Angeles and Montreal won the 1981 National League Division Series.

Six-division alignment (1994–present)

Wild card winners

indicates the winner of the World Series.

One Wild Card (1995–2011)

Two Wild Cards (2012–2019, 2021)

† For the 2020 season, the postseason consisted of eight teams per league; the top two teams in each division and two wild card teams from among the remaining teams.

Three Wild Cards (2022–present)