Mrs. Dalloway is a novel by Virginia Woolf that details a day in the life of Clarissa Dalloway, a fictional high-society woman in post–First World War England. It is one of Woolf’s best-known novels.

The working title of Mrs. Dalloway was The Hours. The novel began as two short stories, “Mrs. Dalloway in Bond Street” and the unfinished “The Prime Minister”. It describes Clarissa's preparations for a party she will host in the evening, and the ensuing party. With an interior perspective, the story travels forward and back in time and in and out of the characters' minds to construct an image of Clarissa's life and of the inter-war social structure. In October 2005, Mrs. Dalloway was included on Time’s list of the 100 best English-language novels written since Time debuted in 1923.

Clarissa Dalloway goes around London in the morning, getting ready to host a party that evening. The nice day reminds her of her youth spent in the countryside in Bourton and makes her wonder about her choice of husband; she had married the reliable Richard Dalloway instead of the enigmatic and demanding Peter Walsh, and she “had not the option” to be with a female romantic interest, Sally Seton. Peter reintroduces these conflicts by paying a visit that morning.