The New York Yankees have won the most World Series championships with 26, their last being in 2000.
Saint Louis Cardinals with 10 World Series Championships from 17 appearances.source www.mlb.com
The New York Yankees have the most World Series titles with 27.
The New York Yankees with 27 World Series Championships.
The Oakland Athletic won the third most World Series titles with 9.
Yankees! with 27 Championships. THEY RULE!
Athletics with 9.
The Yankees are the all-time most successful team with 26 world series championships.
The New York YankeesThe New York Yankees won 27 World Series Championships in 40 World Series appearances.
New York Yankees- 27 World Series victories
1949-1953 New York Yankees (5 championships in a row)
The New York Yankees have won 27 world championships.