William Hercules Hays (August 26, 1820 – March 7, 1880) was a United States district judge of the United States District Court for the District of Kentucky.

William Hercules Hays
Born 1820 in Washington County, KY
Died 1880 in Louisville, KY
FJC ID: 1010
- Gender
- Male
- Race
- White
Prior employment
- Private practice, Springfield, Kentucky1845–1851, 1859–1860, 1867–1879
- Springfield, KentuckyOil and gas entrepreneur · 1866–1867
U.S. Army colonel1861–1866- Commonwealth of KentuckyInspector general · 1865–1866
- KentuckyState representative · 1861
- Washington County [Kentucky] CourtJudge · 1851–1859
Appointments
- U.S. District Court for the District of Kentucky1879–1880 · Appointed by Rutherford B. Hayes (Republican)Term ended: Death

Education
- Read law1845