William Lucas (November 30, 1800 – August 29, 1877) was a nineteenth century politician and lawyer from Virginia. He was the brother of Edward Lucas.
Born at "Cold Spring" near Shepherdstown, Virginia (now West Virginia), Lucas attended the village schools and went on to graduate from Tucker Law School in 1825, being admitted to the bar the same year. He commenced practice in Shepherdstown before moving to Charles Town, Virginia (now West Virginia) in 1830 and continued practice their as well as engaging in horticultural pursuits. Lucas was a member of the Virginia House of Delegates in 1838 and 1839 and was elected a Democrat to the United States House of Representatives in 1838, serving from 1839 to 1841 and being unsuccessful for reelection in 1840. He was elected back to the House in 1842, serving again from 1843 to 1845 and once again being unsuccessful for reelection in 1844. Afterwards, Lucas resumed practicing law and engagements in horticultural pursuits and was a delegate to the Virginia Constitutional Convention in 1850 and 1851. He died at his estate called "Rion Hall" in Jefferson County, West Virginia on August 29, 1877 and was interred in Zion Episcopal Churchyard in Charles Town, West Virginia.
| Preceded by James M. Mason |
Member of the U.S. House of Representatives from Virginia's 15th congressional district March 4, 1839 – March 3, 1841 (obsolete district) |
Succeeded by Richard W. Barton |
| Preceded by John Taliaferro |
Member of the U.S. House of Representatives from Virginia's 10th congressional district March 4, 1843 – March 3, 1845 |
Succeeded by Henry Bedinger |