Charles John Huffam Dickens (7 February 1812 – 9 June 1870) was an English novelist, journalist, short story writer and social critic. He created some of literature's best-known fictional characters, and is regarded by many as the greatest novelist of the Victorian era. His works enjoyed unprecedented popularity during his lifetime and, by the 20th century, critics and scholars had recognised him as a literary genius. His novels and short stories are widely read today.

Born in Portsmouth, Dickens left school at age 12 to work in a boot-blacking factory when his father John was incarcerated in a debtors' prison. After three years, he returned to school before beginning his literary career as a journalist. Dickens edited a weekly journal for 20 years; wrote 15 novels, five novellas, hundreds of short stories and nonfiction articles; lectured and performed readings extensively; was a tireless letter writer; and campaigned vigorously for children's rights, education, and other social reforms.

Dickens's literary success began with the 1836 serial publication of The Pickwick Papers, a publishing phenomenon that sparked Pickwick merchandise and spin-offs. Within a few years, Dickens became an international literary celebrity, famous for his humor, satire, and keen observation of character and society. His novels, most of them published in monthly or weekly installments, pioneered the serial publication of narrative fiction, which became the dominant Victorian mode for novel publication. Cliffhanger endings in his serial publications kept readers in suspense. The installment format allowed Dickens to evaluate his audience's reaction, and he often modified his plot and character development based on such feedback.

His 1843 novella A Christmas Carol remains especially popular and continues to inspire adaptations in every creative medium. Oliver Twist and Great Expectations are also frequently adapted and, like many of his novels, evoke images of early Victorian London. His 1853 novel Bleak House, a satire on the judicial system, helped support a reformist movement that culminated in the 1870s legal reform in England. A Tale of Two Cities (set in London and Paris) is regarded as his best-known work of historical fiction. The most famous celebrity of his era, he undertook a series of public reading tours in the later part of his career in response to public demand.

The term Dickensian is used to describe something that is reminiscent of Dickens and his writings, such as poor social or working conditions, or comically repulsive characters.