1985 Major League Baseball postseason

The 1985 Major League Baseball postseason was the playoff tournament of Major League Baseball for the 1985 season. The winners of each division advance to the postseason and face each other in a League Championship Series to determine the pennant winners that face each other in the World Series. This was the first postseason in which the LCS was expanded to a 7-game series, from 1969 to 1984 it was a 5-game series.

In the American League, the Kansas City Royals returned to the postseason for the seventh time in ten years, and the Toronto Blue Jays made their first postseason appearance in franchise history. This was the last time that the Royals appeared in the postseason until 2014.

In the National League, the St. Louis Cardinals returned to the postseason for the second time in four years, and the Los Angeles Dodgers were making their fifth appearance in the last nine years.

The playoffs began on October 8, 1985, and concluded on October 27, 1985, with the Royals defeating the Cardinals in seven games in the 1985 World Series. This was the first title in franchise history for the Royals.