The pro sports team that has won the most championships are the Boston Celtics. They won eight consecutive championships from 1959 to 1966.
The NEW YORK YANKEES!!
Football = Sir Alex Ferguson
In Spain, Real Madrid have won 32 La Liga championships. In North America, the New York Yankees have won 27 MLB championships and the Montreal Canadiens have won 24 NHL championships.
The Pittsburgh Steelers with 6 Super Bowl Championships, have the most. The Dallas Cowboys and the San Francisco 49ers have won 5 each.
miami dolphins, 17-0
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.
Ferrari as a team have 31 championships. The Yankees have won 27 championships. The Montreal Canadians with 24. Scottish Soccer Team Glasgow Rangers has won 52 Championships. Boca Juniors of the Argentine professional soccer league have 41.
the new york yankees have 27 world series wins