The 1998 World Series was the championship series of Major League Baseball's (MLB) 1998 season. The 94th edition of the World Series, it was a best-of-seven playoff between the American League (AL) champion New York Yankees and the National League (NL) champion San Diego Padres. The Yankees swept the Padres in four games to win their second World Series championship in three years and their 24th overall. Yankees third baseman Scott Brosius was named the World Series Most Valuable Player.

The Yankees advanced to the World Series by defeating the Texas Rangers in the AL Division Series, three games to zero, and then the Cleveland Indians in the AL Championship Series, four games to two. The Padres advanced to the series by defeating the Houston Astros in the NL Division Series, three games to one, and then the Atlanta Braves in the NL Championship Series, four games to two. It was the Yankees' second appearance in the World Series in three years, and San Diego's second World Series appearance overall, their first since losing in 1984.

This was officially the first World Series that Bud Selig presided over as Commissioner of Baseball, although he had presided over the Commissioner's Trophy presentation at the end of the 1995 and 1997 World Series as the interim Commissioner. For the first time, the same city—San Diego—hosted both the final World Series game and the Super Bowl the same year; not only were they held in the same city, they were both also held in the same stadium, Qualcomm Stadium.