Little Dorrit, novel by Charles Dickens, published serially from 1855 to 1857 and in book form in 1857. The novel attacks the injustices of the contemporary English legal system, particularly the institution of debtors' prison.

Amy Dorrit, referred to as Little Dorrit, is born in and lives much of her life at the Marshalsea prison, where her father is imprisoned for debt. She and her siblings earn meagre wages at jobs outside the prison walls, returning nightly to Marshalsea. Little Dorrit works as a seamstress for Mrs. Clennam, whose son Arthur takes an interest in the Dorrit family and eventually helps free Mr. Dorrit from prison.

Arthur becomes a debtor himself and falls in love with Little Dorrit, but because their financial circumstances are now reversed, he does not ask her to marry him. In the end Arthur's mother, a miserly, mean-spirited woman, is forced to reveal that Arthur is not really her son and that she had been keeping money from him and the Dorrits for many years. This circumstance leaves Little Dorrit and Arthur free to marry.