The Celtics have won the Championship 17 times...
Celtics won 17 NBA Championship.
Twelve times. The Celtics have won nine of the championship meetings.
the celtics won the nba championship in the 07-08 season. paul pierce was MVP
your spelling championship is wrong and 17 times they won
The Boston Celtics have won 17 NBA titles.
The Boston Celtics have won 17 NBA championships.
The Celtics won in the year 1957.
about 10 or something like that.
The Celtics won their championship in Game 6 at the TD Banknorth Garden.