As of the 2008 season: 1) New York Yankees - 26 World Series won
2) St. Louis Cardinals - 10 World Series won
3) Oakland Athletics - 9 World Series won
4) Boston Red Sox - 7 World Series won
5) Los Angeles Dodgers - 6 World Series won
6) Cincinnati Reds, Pittsburgh Pirates, San Francisco Giants - 5 World Series won
The New York Yankees have played in the most World Series games.
Yankees...26
The Oakland Athletic have the third most World Series titles with 9.
The New York Yankees appeared in the most World Series and Won 27 titles.
The New York Yankees have won the most World Series titles (26)
Most World Series won: New York Yankees - 27.
The Los Angeles Dodgers have the 5th most World Series titles with 6.
The St. Louis Cardinals have the second most World Series titles with 10.
No one. Brazil has won the most World Cups with 5.
The New York Yankees appeared in 40 World Series, and won 27.
The Oakland Athletic won the third most World Series titles with 9.
Tye St. Louis Cardinals have the second most World Series rings with 10.