Albert Bigelow Paine (10 July 1861 – 9 April 1937) was an American author and biographer best known for his work with Mark Twain. Paine was a member of the Pulitzer Prize Committee and wrote in several genres, including fiction, humour, and verse.
Paine was born in New Bedford, Massachusetts and was moved to Bentonsport, Iowa when one year old. From early childhood until early adulthood, Paine lived in the village of Xenia in southern Illinois; here he received his schooling. At the age of twenty, he moved to St. Louis, where he trained as a photographer, and became a dealer in photographic supplies in Fort Scott, Kansas