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• Alexandria County (1749–1791) and (1846–1920) (was part of the District of Columbia 1791-1846), changed its name to become Arlington County in 1920
• Charles River County (1637–1643) renamed York County
• Dunmore County (1772–1778) renamed Shenandoah County
• Elizabeth City County (1643-1952) consolidated with the Town of Phoebus into the independent City of Hampton
• Fincastle County (1772–1776) divided into Montgomery County, Washington County, and Kentucky County (the latter of which later became the state of Kentucky)
• Lower Norfolk County (1637–1691) divided in Norfolk County and Princess Anne County
• Nansemond County (1646-1972) became the independent City of Nansemond (later consolidated with Suffolk)
• New Norfolk County (1636–1637) divided into Lower Norfolk County and Upper Norfolk County
• Norfolk County (1691–1963) consolidated with the independent City of South Norfolk to form the independent City of Chesapeake
• Patrick Henry County (1777–1790) was split into two counties, the western part becoming Patrick County and the rest becoming Henry County.
• Princess Anne County (1691–1963) consolidated with the independent City of Virginia Beach
• Rappahannock County (1656–1692) divided into Essex County and Richmond County (not to be confused with the current capital city of the same name located elsewhere in Virginia) (also not to be confused with the current Rappahannock County, founded in 1833, located in the northwestern portion of the state)
• Upper Norfolk County (1637–1646) became Nansemond County
• Warwick County (1643-1952) became the independent City of Warwick (later consolidated with Newport News)

Source:  Wikipedia