Boston Celtics (18)
Boston Celtics with 17.
The Boston Celtics With 17 baby
new york city giants
The Pittsburgh Steelers. As of 2009, has 6 Super Bowl championships.
The pro sports team that has won the most championships are the Boston Celtics. They won eight consecutive championships from 1959 to 1966.
Chicago Bears-9 (1 super bowl, 8 nfl championships)
Calabasas Pro Tennis Championships was created in 2001.