The 2003 National League Division Series (NLDS), the first round of the 2003 National League playoffs, began on Tuesday, September 30, and ended on Sunday, October 5, with the champions of the three NL 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 Braves played the Cubs, rather than the wild card Marlins, because the Braves and Marlins are in the same division.

The Cubs and Marlins went on to meet in the NL Championship Series, for the right to advance to the 2003 World Series against the American League champion New York Yankees.

Chicago won the series, 3–2.

Florida won the series, 3–1.

Turner Field in Atlanta

In Game 1, Kerry Wood of Chicago faced Russ Ortiz of Atlanta. Both pitchers were on their game and in the bottom of the third the Braves struck first when Marcus Giles's home run put them up 1–0. The score remained that way until the top of the sixth, when the Cubs loaded the bases with three consecutive leadoff singles. However, Ortiz got the next two outs, with the last being an RBI groundout by Paul Bako. Wood doubled in two runs, then scored on Kenny Lofton's single to make it 4–1 Cubs. The Braves loaded the bases in the eighth off of Wood on a strike-three wild pitch and two walks, but scored only one run on Chipper Jones's forceout off of Mike Remlinger. Kyle Farnsworth stranded the bases loaded while Joe Borowski pitched a scoreless ninth to give the Cubs a series lead. Combined, the Cubs bullpen allowed only one hit, a ninth-inning single by Vinny Castilla. This was the Cubs' first road postseason victory since Game 3 of the 1945 World Series

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