John Young Mason (April 18, 1799 – October 3, 1859) was an attorney, planter, judge and politician from Virginia. Mason served in the U.S. House of Representatives after serving in both houses of the Virginia General Assembly, then became the United States district judge for the United States District Court for the Eastern District of Virginia (1841-1843), but resigned that position to hold important executive and diplomatic offices in the administrations of Presidents John Tyler, James K. Polk, Franklin Pierce and James Buchanan before his death in Paris, France shortly before the American Civil War, including as the 16th and 18th United States Secretary of the Navy, the 18th Attorney General of the United States and United States Minister to France.

John Young Mason
Virginia Eastern District Court
Born 1799 in Hicksford (now Emporia), VA
Died 1859 in Paris, France
FJC ID: 1499
- Gender
- Male
- Race
- White
Prior employment
U.S. Department of StateMinister plenipotentiary to France · 1854–1859- Private practice, Richmond, Virginia1849–1854
- Secretary of the Navy1844–1845, 1846–1849
Attorney General of the United States1845–1846- Private practice, Hicksford (now Emporia), Virginia1837–1841
- U.S. representative from Virginia1831–1837
- Private practice, Southampton County, Virginia1821–1831
- VirginiaState senator · 1827–1831
- Greensville County, VirginiaCommonwealth's attorney · 1827–1831
- VirginiaState delegate · 1823–1827
- Private practice, Greensville County, Virginia1819–1821
Appointments
1841–1844 · Appointed by Martin Van Buren (Democratic)Term ended: Resignation
Education
- Litchfield (Tapping Reeve) Law School
- Read law1819
- University of North CarolinaA.B. · 1816