Huntley, also known as Historic Huntley or Huntley Hall is an early 19th-century Federal-style villa and farm in the Hybla Valley area of Fairfax County, Virginia. The house sits on a hill overlooking Huntley Meadows Park to the south. The estate is best known as the country residence of Thomson Francis Mason (1785–21 December 1838), grandson of George Mason of nearby Gunston Hall. It is listed on the National Register of Historic Places (NRHP), the Virginia Landmarks Register (VLR), and the Fairfax County Inventory of Historic Sites.
Upon the death of Mason's grandfather George Mason on 7 October 1792, his father Thomson inherited a portion of the Gunston Hall estate. Around 1817, Mason's father Thomson divided the property into two farms: Dogue Run farm for Mason's younger brother Richard Chichester Mason (1793–1869) and Hunting Creek farm adjacent to Mount Vernon for Mason.
After Mason's marriage in 1817 to Elizabeth "Betsey" Clapham Price of Leesburg, Virginia, he began building Huntley as a secondary home against a hillside overlooking Hybla Valley and the Potomac River on his Hunting Creek tract between 1820 and 1825. Consistent with its counterpart Mason residences like Gunston Hall and Hollin Hall, Huntley was most likely named for Huntly Castle, an ancestral home in Scotland from Mason's mother's side. Huntley never served as a permanent residence for Mason, who owned a number of houses in Alexandria including Colross, his chief homestead. Huntley was conveniently located along a gravel road from Alexandria. By 1834, Mason's brother Richard built Okeley Manor on neighboring Dogue Run farm.