The New York Yankees have the most championships in any sports history. They have a total of 26 championships and have appeared in the championship 39 times.
Dr. Jerry Buss owned the Los Angeles Lakers from 1979-2013 and has won 10 championships.
The Yankees have won the most championships in sports. They have won 27 World Series. The Lakers have won 16 NBA championships.
Bill Russell
Lakers
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!!
UCLA
The New York Yankees won the most World Series in the history of sports! The New York Yankees won the most World Series in the history of sports!
MIT?
Probably the New York Yankees, with the most World Series games won in history.
In Pro sports in the United States, the New York Yankees (26) have won the most World Championships, followed by the Montreal Canadians (24).
The Texas Longhorns