The 2003 American League Division Series (ALDS), the opening round of the 2003 American League playoffs, began on Tuesday, September 30, and ended on Monday, October 6, with the champions of the three AL divisions—along with a "wild card" team—participating in two best-of-five series. The teams were:

The higher seed (in parentheses) had the home field advantage (Games 1, 2 and 5 at home), which was determined by playing record. Although the team with the best record was normally intended to play the wild card team, the Yankees played the Twins, rather than the wild card Red Sox, because the Yankees and Red Sox are in the same division.

The Yankees and Red Sox went on to meet in the AL Championship Series, for the right to advance to the 2003 World Series against the National League champion Florida Marlins.

New York won the series, 3–1.

Boston won the series, 3–2.

Yankee Stadium (I) in Bronx, New York

Hubert H. Humphrey Metrodome in Minneapolis, Minnesota

New York's victory secured their place in the American League Championship Series.

2003 ALDS (3–1): New York Yankees over Minnesota Twins

Network Associates Coliseum in Oakland, California

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