|James Murray Mason|
|President pro tempore of the United States Senate|
January 6, 1857 – March 4, 1857
|Preceded by||Jesse D. Bright|
|Succeeded by||Thomas J. Rusk|
|United States Senator|
January 21, 1847 – March 28, 1861
|Preceded by||Isaac S. Pennybacker|
|Succeeded by||Waitman T. Willey|
|Member of the U.S. House of Representatives from Virginia's 15th district|
March 4, 1837 – March 3, 1839
|Preceded by||Edward Lucas|
|Succeeded by||William Lucas|
|Born||November 3, 1798|
Analostan Island, D.C., U.S.
|Died||April 28, 1871 (aged 72)|
Alexandria, Virginia, U.S.
|Spouse(s)||Eliza Margaretta Chew|
|Alma mater||University of Pennsylvania, College of William and Mary (law)|
James Murray Mason (November 3, 1798 – April 28, 1871) was a US Representative and US Senator from Virginia. He was a grandson of George Mason and represented the Confederate States of America as appointed commissioner of the Confederacy to the United Kingdom and France between 1861 and 1865, during the American Civil War.
In November 1861, Mason was among those captured by Federal troops during the Trent Affair in November 1861 while he was on a mission to England.