List of Major League Baseball game sevens

In Major League Baseball (MLB), a game seven can occur in the World Series or in a League Championship Series (LCS), which are contested as best-of-seven series. Based on the playoffs format arrangement, game seven—when necessary—is played in the ballpark of the team holding home-field advantage for the series.

The World Series first employed a best-of-seven format in. That format has been used annually since then, with four exceptions:, , and , which were contested as best-of-nine series (as was the edition), and , when the MLB postseason was cancelled due to a players' strike.

The League Championship Series began as best-of-five series, in both the American League and the National League, in. Since the season, they have used a best-of-seven format, except for 1994 as noted above.

A game seven cannot occur in earlier rounds of the MLB postseason, as Division Series (best-of-five) and Wild Card (best-of-three) rounds use shorter series.