The New York Yankees are a Major League Baseball team based in the borough of The Bronx, in New York City, New York. Since the 1969 expansion, the Yankees have played in the Eastern Division of the American League. The Yankees have been Major League Baseball's most dominant franchise. No team has won more pennants or World Series, and many of the game's biggest stars have been Yankees.

One of the American League's eight charter franchises, the Yankees have been among the most storied teams in North America over their 100+ year history. Along with franchises like the Boston Celtics and Montreal Canadiens, the Yankees have helped exemplify the phrase "dynasty" in professional athletics.

The Boston Red Sox are the Yankees' chief rivals, with the Yankees-Red Sox rivalry often considered one of the most heated rivalries in all of American professional sports.

The Yankees have been Major League Baseball's most dominant franchise. No team has won more pennants or World Series championships. The Yankees have won 26 World Series in 39 appearances; the St. Louis Cardinals and the Athletics are tied for second with 9 World Series victories each, and the Dodgers are second in World Series appearances with 18.

Among the North American major sports, the Yankees' success is only approached by the 24 Stanley Cup championships of the Montreal Canadiens of the National Hockey League. Most of those Cups were won during the period when the hockey league had only six teams, while most of the Yankees titles were won when the Major Leagues had 16 teams. The Yankees are also the only team that is represented at every position in the Baseball Hall of Fame.