1st Senate district

1st senate district may refer to:


 * Alabama's 1st Senate district
 * California's 1st State Senatorial district
 * Colorado's 1st Senate district
 * Delaware's 1st Senate district
 * Florida's 1st Senate district
 * Georgia's 1st Senate district
 * Indiana's 1st Senate district
 * Iowa's 1st Senate district
 * Kansas's 1st Senate district
 * Massachusetts Senate's 1st Middlesex district
 * Michigan's 1st Senate district
 * Nevada's 1st Senate district
 * New York's 1st State Senate district
 * Oregon's 1st Senate district
 * Poland's 1st Senate district
 * Tennessee's 1st Senate district
 * Utah's 1st State Senate district
 * Virginia's 1st Senate district
 * Wisconsin's 1st Senate district
 * West Virginia's 1st Senate district