As of 2014, the Celtics have won 17 NBA Championships. They won the first one in 1957. They won every one from 1959 to 1966. They also won from 1968 to 1969 and in 1974, 1976, 1981, 1984, 1986, and 2008.
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The Celtics last championship came in the 1985-1986 season. answer actually the celtics last won during the 2007-2008 season winning their 17th championchip
The Boston Celtics won their first championship in 1957 NBA Finals.
They beat the St. Louis Hawks 4 games to 3.
The 2007-2008 season, defeating the Los Angeles Lakers, 4-2 in that series. It was Boston's 17th world championship.
Boston celtics with 16 championship
The Boston Celtics have won 17 NBA championships.
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Boston Celtics