Daniel Ray Ainge is an American former professional basketball player, coach, and professional baseball player who serves as an executive for the Utah Jazz of the National Basketball Association (NBA). During his 18-year career as general manager for the Boston Celtics, he was known for making bold moves to help the team rebuild, clearing cap space and tanking for picks. Ainge served as the Boston Celtics' president of basketball operations from 2003 until his retirement in 2021, when he was succeeded by incumbent head coach Brad Stevens.

The Boston Celtics are an American professional basketball team based in Boston. The Celtics compete in the National Basketball Association (NBA) as a member of the Atlantic Division of the Eastern Conference. Founded in 1946 as one of the league's original eight teams, the Celtics play their home games at TD Garden, which is also the home of the National Hockey League's Boston Bruins. The Celtics are regarded as one of the most successful teams in NBA history and are tied with the Los Angeles Lakers for the most NBA championships with 17. The Celtics currently hold the record for the most recorded wins of any NBA team.