The Celtics have won the Championship 17 times...
Twelve times. The Celtics have won nine of the championship meetings.
Seventeen.
18 times
your spelling championship is wrong and 17 times they won
check on google.... .... retard
21. They have won 17 of them.
As of the end of the 2009-2010 NBA season, the Bolton Celtics have won 17 championships.
They Have won no Championships
about 10 or something like that.
Since 1957, the Celtics have reached the NBA Finals 21 times and won 17 championships.
Celtics won 17 NBA Championship.