The Lincoln family is an American family of English origins. It includes the fourth United States Attorney General, Levi Lincoln Sr., governors Levi Lincoln Jr. and Enoch Lincoln, and Abraham Lincoln, the sixteenth President of the United States. There were ten known descendants of Abraham Lincoln. The president's branch of the family is believed to have been extinct since its last undisputed, legal and known descendant, Robert Todd Lincoln Beckwith, died on December 24, 1985, without any acknowledged children.

Abraham Lincoln was an American lawyer, politician, and statesman, who served as the 16th president of the United States, from 1861 until his assassination in 1865. Lincoln led the United States through the American Civil War, defending the nation as a constitutional union, defeating the insurgent Confederacy, playing a major role in the abolition of slavery, expanding the power of the federal government, and modernizing the U.S. economy.