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The NEW YORK YANKEES!!
The Pittsburgh Steelers with 6 Super Bowl Championships, have the most. The Dallas Cowboys and the San Francisco 49ers have won 5 each.
The Boston Celtics. They have won 17 times.The NBA teams that has won the most finals or with the most titles is the The Boston Celtics.
The Green Bay Packers have won 13 NFL championships ... 4 Super Bowls and 9 championships prior to the beginning of the Super Bowl. The Toronto Argonauts have 11 championships. That is the most for professional football. They are third over all in championships for any sport behind the No 1 New York Yankees, and the second place Montreal Canadians.
miami dolphins, 17-0
the new york yankees have 27 world series wins
The Boston Celtics won the most NBA championships. They won 17 NBA Titles (
The record for the most championships in professional sports is held by the Boston Celtics, with a total of 17 NBA championships.
The Yankees have won the most championships in sports. They have won 27 World Series. The Lakers have won 16 NBA championships.
UCLA has won 11 NCAA mens championships. Tennessee has won 8 NCAA women's championships.
The Boston Celtics won the most NBA titles with 17 championships. The Lakers have the second most with 16 championships.
The UCLA Lady Bruins have won the most National Championships in Collegiate Fastpitch Softball...I believe they have won 25 or 26 National Championships.