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The Celtics won three championships during the 1980s -- in 1980-81, 1983-84 and 1985-86.
The Boston Celtics currently have the most with 17 championships,while the Lakers are right behind them with 15.
The Boston Celtics have won 17 NBA championships.
there have been 62 championships 33 combined wins by the lakers and the celtics Celtics-17 Lakers-16
Since 1957, the Celtics have reached the NBA Finals 21 times and won 17 championships.