This study examines the representation of feminist existentialism in certain western societies as depicted in American and British literatures. One of the novels is British, and the other is American. The British novel is significantly written by Virginia Woolf in her novel: To the Lighthouse, while the American one is written by Nathanial Hawthorn in his novel: The Scarlet Letter. The study aims at identifying the women's image in their communities and clarifying the way of struggling in order to obtain their own rights. The study also explores the women's status and how the community treats them. Feminist existentialism has proved women's rights in their society and recognized them through their obvious writings. They try to perform their equality towards the authority of man. This research tries to explore the size of women's problems towards men's behaviors and reactions during the daily treatment at houses, institutions, or in other places. This research is qualitative. The writers of the following two novels demand their representation in the field of feminist existentialism. InVirginia Woolf's To the Lighthouse and Nathaniel Hawthorne's The Scarlet Letter, the writers' style is actualy clear. The study uses some important events that relate to the plot, motifs, main themes, and quotes of the two novels. These elements show certain sides of feminist existentialism Theory. The study reveals that the feminist existentialism plays an important role in Woolf's To the lighthouse. Woolf uses the character of Mrs. Ramsay to clarify the role of feminist existentialism. Mrs. Ramsay concentrates on using a sympathetic style and a persuasive method in narrating the events of her story. In Hawthorne's The Scarlet Letter, Hester Prynne and her daughter Pearl suffer a lot because of her illicit relationship. The men show their tyranny and inequality towards Hester and her daughter Pearl. Key words: Feminism, Existentialism Theory, inwquality, man's authority.