The Boston Celtics have won 17 NBA Championships, tied with the Los Angeles Lakers for the most championships in NBA history. The Celtics' dominance was especially pronounced during the late 1950s and 1960s when they won 11 championships in 13 seasons. Led by legendary players like Bill Russell and Bob Cousy, the Celtics built a legacy of success that continues to this day.

The team's famous green and white jerseys and the iconic parquet floor of the TD Garden are well-known symbols of the franchise. Though the Lakers have matched their number of titles, the Celtics' 11 championships during the Russell era stand out as one of the most dominant periods in the history of any sport.