The 1990 Major League Baseball All-Star Game was the 61st playing of the midsummer classic between the all-stars of the American League (AL) and National League (NL), the two leagues comprising Major League Baseball. The game was held on July 10, 1990, at Wrigley Field in Chicago, the home of the Chicago Cubs of the National League. The game resulted in the American League defeating the National League 2-0. The game is remembered for a rain delay in the 7th inning that resulted in CBS airing Rescue 911 during the delay. This is also the first game – and so far the only one – to feature two players bearing the same name: Greg Olson. One was a pitcher, represented the AL squad and Baltimore Orioles and featured three G's in the first name and the other was a catcher, represented the NL squad and Atlanta Braves and featured only two G's in the first name.

The pregame ceremonies celebrated the 85th anniversary of the Great Lakes Naval Training Station which, as with previous All-Star Games held in Chicago, provided the colors presentation. After Wayne Messmer sang O Canada, recording artist (and native Chicagoan) Richard Marx sang the National Anthem. The last All-Star Game previously held at Wrigley Field was represented by Ernie Banks who threw out the ceremonial first pitch.

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