The Chelmsford Forum is a multi-use indoor sport and concert venue, actually located in Billerica, Massachusetts, United States, just across the town line of Chelmsford, Massachusetts. The venue was formerly home to the UMass Lowell River Hawks, during which time the team won two NCAA Division II national championships (1981 and 1982). It is currently home to the ice hockey teams from Chelmsford High School and Nashoba Valley Technical High School as well as some of Lowell Catholic's games. The rink is owned by the town of Chelmsford, but currently managed by Valley Rinks, having previously been managed by FMC Ice Sports (1997–2018). The arena was formerly named for state senator B. Joseph Tully.