"The Tenant of Wildfell Hall" is the second and final novel by the English author Anne Brontë. It was first published in 1848 under the pseudonym Acton Bell. Probably the most shocking of the Brontës' novels, it had an instant and phenomenal success, but after Anne's death her sister Charlotte prevented its re-publication.

The novel is framed as a series of letters from Gilbert Markham to his friend and brother-in-law about the events leading to his meeting his wife.

A mysterious young widow arrives at Wildfell Hall, an Elizabethan mansion which has been empty for many years, with her young son and servant. She lives there in strict seclusion under the assumed name Helen Graham and very soon finds herself the victim of local slander. Refusing to believe anything scandalous about her, Gilbert Markham, a young farmer, discovers her dark secrets. In her diary, Helen writes about her husband's physical and moral decline through alcohol, and the world of debauchery and cruelty from which she has fled. This novel of marital betrayal is set within a moral framework tempered by Anne's optimistic belief in universal salvation.

"The Tenant of Wildfell Hall" is mainly considered to be one of the first sustained feminist novels.

May Sinclair, in 1913, said that the slamming of Helen's bedroom door against her husband reverberated throughout Victorian England. In escaping her husband, Helen violates not only social conventions, but also English law.