| 1892 MLB season | |
|---|---|
| League | National League (NL) |
| Sport | Baseball |
| Duration | Regular season:
|
| Number of games | 154 |
| Number of teams | 12 |
| Pennant winner | |
| NL champions | Boston Beaneaters |
| NL runners-up | Cleveland Spiders |
| First-half champions | Boston Beaneaters |
| First-half runners-up | Brooklyn Grooms |
| Second-half champions | Cleveland Spiders |
| Second-half runners-up | Boston Beaneaters |
| World's Championship Series | |
| Champions | Boston Beaneaters |
| Runners-up | Cleveland Spiders |
The 1892 Major League baseball season began on April 12, 1892. Unique to National League history, the season was organized into a split season format, with July 14 being the split date between the two half seasons. The regular season ended on October 15, with the Boston Beaneaters as the pennant winner of the National League overall, as well as the first-half champions, with the Cleveland Spiders as second-half champions. The postseason began with Game 1 of the eighth and final World's Championship Series on October 17 and ended with Game 6 on October 24. Aside from a tie game, the Beaneaters swept the Spiders with five wins in the best-of-nine playoff, and therefore winner of the final Dauvray Cup. This was Boston's only pre-modern championship.
The 1892 season saw the return of a postseason championship series (albeit a one-off of this format), following the demise of the American Association. The one-off was the first since the 1890 World's Championship Series. The next championship series would take place in 1894 via the Temple Cup.
The demise of the American Association saw four of its teams merged into the National League, including the Baltimore Orioles, Louisville Colonels, St. Louis Browns, and Washington Statesmen (renamed as the Washington Senators). The four other American Association clubs active at the end of the previous season, the Boston Reds, Columbus Solons, Milwaukee Brewers, and Philadelphia Athletics), saw their owners paid $135,000 (equivalent to $4,578,000 in 2023) and their players dispersed to the surviving clubs.