The 1976 World Series was the championship series of Major League Baseball's (MLB) 1976 season. The 73rd edition of the World Series, it was a best-of-seven playoff played between the National League (NL) champion Cincinnati Reds and the American League (AL) champion New York Yankees. The Reds swept the Series in four games to repeat as champions, avenging their 1939 and 1961 World Series losses to the Yankees. The 1976 Reds became, and remain, the only team to sweep an entire multi-tier postseason, one of the crowning achievements of the franchise's Big Red Machine era. They also became the third NL team to win consecutive World Series, and remain the last to do so.

The 1976 New York Yankees season was the 74th season for the Yankees. The team finished with a record of 97–62, finishing 10½ games ahead of the Baltimore Orioles to win their first American League East Division title.