John Baker White (August 4, 1794 – October 9, 1862) was a 19th century American military officer, lawyer, court clerk, and civil servant in the U.S. state of Virginia. White served as the Clerk of Court for Hampshire County, Virginia (now West Virginia) for 47 years (1815–1861), after which he served in the Confederate States Department of the Treasury during the American Civil War. He was a member of the White political family of Virginia and West Virginia and was the son of prominent Virginia judge Robert White (1759–1831) and the father of West Virginia Attorney General Robert White (1833–1915). To date, White is the longest-serving Clerk of Court for Hampshire County, West Virginia since the office's creation in 1757.