William Galvin

William Galvin, Bill Galvin or Billy Galvin may refer to:
 * William F. Galvin (born 1950), Massachusetts Secretary of the Commonwealth
 * William C. Galvin (born 1956), Massachusetts state representative
 * William J. Galvin (1904–1988), Boston city councilor
 * Bill Galvin (Australian politician) (1903–1966), Victorian state politician
 * Billy Galvin, a 1986 film
 * William (Billy) Galvin III (born 2007), American high school basketball player