The House of Mirth is a 1905 novel by American author Edith Wharton.

It tells the story of Lily Bart, a well-born but impoverished woman belonging to New York City's high society around the end of the 19th century. Wharton creates a portrait of a stunning beauty who, though raised and educated to marry well both socially and economically, is reaching her 29th year, an age when her youthful blush is drawing to a close and her marital prospects are becoming ever more limited.

The House of Mirth traces Lily's slow two-year social descent from privilege to a tragically lonely existence on the margins of society.

In the words of one scholar, Wharton uses Lily as an attack on "an irresponsible, grasping and morally corrupt upper class."