Gurdwara Guru Nanak Darbar is a Sikh gurdwara in Medford, Massachusetts. The congregation grew from early prayer services held in community members' homes, later moving to rented premises in Somerville before purchasing and converting a building in Medford into a gurdwara in 2003. Its history reflects the development of the Sikh community across Somerville, Cambridge, Malden, Medford, and Boston. The gurdwara's activities and projects are supported largely by volunteers as part of its charitable, non-profit community role.