The Boston Celtics have won the most NBA Finals and thus the most NBA championships with 17.
The Boston Celtics have won the most NBA Finals ever. (17 as of 2009)
The Miami Heat won the 2013 NBA finals.
The Detroit Pistons won the 1989 NBA Finals.
The Boston Celtics won the 1986 NBA Finals.
The Lakers won the NBA finals in 1988
The Boston Celtics won the 1984 NBA Finals.
The Miami Heat won the NBA Finals in 2006.
The Boston Celtics
the answer to the question is your mom
The San Antonio Spurs won the 2003 NBA finals