The Life of Samuel Johnson is a biography of Dr. Samuel Johnson written by James Boswell. It is regarded as an important stage in the development of the modern genre of biography; many have claimed it as the greatest biography written in English.

Samuel Johnson, often referred to as Dr. Johnson, was an English writer who made lasting contributions to English literature as a poet, essayist, moralist, literary critic, biographer, editor and lexicographer. Johnson was a devout Anglican and committed Tory, and has been described as "arguably the most distinguished man of letters in English history." He is also the subject of "the most famous single work of biographical art in the whole of literature": James Boswell's The Life of Samuel Johnson.