The 1998 American League Championship Series (ALCS), the second round of the 1998 American League playoffs, was played between the East Division champion New York Yankees and the Central Division champion Cleveland Indians. The Yankees defeated the Indians four games to two and went on to sweep the National League champion San Diego Padres in the 1998 World Series to win their 24th World Series championship. New York, who won 114 games during the regular season, recorded their only two losses of the 1998 postseason in this series.