Catherine Barkley is a fictional character from the novel A Farewell to Arms by Ernest Hemingway. She is a British nurse working during World War I, known for her strong and compassionate nature. Catherine becomes romantically involved with the protagonist, Frederic Henry, as they navigate the challenges of war and personal loss. Throughout the story, Catherine represents love and resilience amidst the chaos of conflict. Her character highlights the emotional struggles faced by those affected by war, as well as the desire for connection and hope in difficult times.