Michael John Barrett (born June 27, 1948, in Agana, Guam) is a Massachusetts politician noted for having been elected to serve in three completely different state legislative districts over the course of his political career. At present he is the state senator for the 3rd Middlesex District of Massachusetts. Barrett served in the State Senate earlier, in 1987–1994, representing another district (Cambridge, Belmont, Watertown and the Allston-Brighton neighborhood of Boston), before moving to his present home in suburban Lexington in 1996. Even earlier, in 1979–1985, he served in the Massachusetts House of Representatives from a district comprising Reading, North Reading and a portion of Wilmington.