The Boston Celtics and a professional ice hockey team share an arena.
Boston Celtics . The Celtics play their home games at the TD Garden , which they share with the National Hockey League ( NHL ) 's Boston Bruins . The National Hockey League ( NHL ; Ligue nationale de hockey -- LNH ) is a professional ice hockey league currently comprising 30 teams -- 23 in the United States and 7 in Canada -- with a 31st team in Las Vegas scheduled to begin play in the 2017 -- 18 season . TD Garden , often called `` Boston Garden '' and `` The Garden '' , is a multi-purpose arena in Boston .