The 1913 United States Senate election in Massachusetts was held during January 1913. Incumbent Republican Senator Winthrop Crane retired and was succeeded by Republican John Wingate Weeks.
At the time, Massachusetts elected United States senators by a majority vote of the combined houses of the Massachusetts General Court.
Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).