The Boston Celtics have won the most with 17 NBA Championships as of the end of the 2007-2008 season. In second, the Los Angeles Lakers (formerly Minneapolis Lakers) have won 14. The years and results of all NBA Finals Championships are listed on nba.com at this link: http://www.nba.com/history/finals/champions.html
Boston Celtics (18)
Boston Celtics with 17.
The Boston Celtics With 17 baby
Patrick lemIcheal James
The pro sports team that has won the most championships are the Boston Celtics. They won eight consecutive championships from 1959 to 1966.
The Pittsburgh Steelers. As of 2009, has 6 Super Bowl championships.
Green Bay Packers
they was a pro basketball team
The U.S sports team that has the most titles is the NEW YORK YANKEES. They have 27 World Series championships.