List of Major League Baseball attendance records

As both clubs had been notified that they were being dropped from the National League, fans had very little interest in watching the lame-duck teams,[4] especially on a day which the Boston Globe described as "bleak, cold and windy".

Games that were played as such included the April 29, 2015 game between the Baltimore Orioles and the Chicago White Sox at Oriole Park at Camden Yards, which was closed because of safety concerns surrounding the 2015 Baltimore protests,[6] and the majority of the 2020 season (only the NLCS and World Series had spectators) which was closed to fans due to the COVID-19 pandemic in 2020.

The 1918 season is excluded as it was shortened due to travel restrictions caused by World War I.

The 1981 season is excluded due to the players' strike that cancelled almost two months' worth of games.

Toronto Blue Jays became the first team in baseball history to draw 4 million mark in attendance in 1991 season.