The Boston Celtics are an American professional basketball team based in Boston, Massachusetts. The Celtics play in the Atlantic Division of the Eastern Conference in the National Basketball Association (NBA). The Boston Celtics play their home games in TD Garden, sharing the same home stadium with the Boston Bruins, their hockey counterpart. The Boston Celtics are one of the most successful teams in the NBA having 17 championships tying with the Los Angeles Lakers. Their last championship was in 2008. As of 2023, the Celtics are the fifth most valuable NBA team being worth $4 billion.