User: What NBA team has the most championships in the modern era? The modern era is defined as post NBA/ABA league merger, 24 second clock and three-point basket.
Assistant: The NBA professional basketball team with the most modern championships are the Los Angeles Lakers with 11 in 1980, 1982, 1985, 1987, 1988, 2000, 2001, 2002, 2009, 2010, 2020.