Livingston County is a county located in the U.S. state of Kentucky. As of the 2020 census, the population was 8,888. Its county seat is Smithland and its largest community is Ledbetter. The county was established in 1798 from land taken from Christian County and is named for Robert R. Livingston, a member of the Committee of Five that drafted the U.S. Declaration of Independence. The county was strongly pro-Confederate during the American Civil War and many men volunteered for the Confederate Army. Livingston County is part of the Paducah, KY-IL Metropolitan Statistical Area. It is a prohibition or dry county with the exception of Grand Rivers which voted to allow alcohol sales in 2016.

Robert Robert Livingston was an American lawyer, politician, and diplomat from New York, as well as a Founding Father of the United States. He was known as "The Chancellor" after the high New York state legal office he held for 25 years. He was a member of the Committee of Five that drafted the Declaration of Independence, along with Thomas Jefferson, Benjamin Franklin, John Adams, and Roger Sherman, but was recalled by the state of New York before he could sign the document. Livingston administered the oath of office to George Washington when he assumed the presidency April 30, 1789. Livingston was also elected as a member of the American Philosophical Society in 1801.