Denny Swift is a fictional character from the novel "The Art of Racing in the Rain," written by Garth Stein. He is a race car driver who navigates the challenges of life, love, and loss while pursuing his passion for racing. The story is narrated from the perspective of his dog, Enzo, who provides insights into Denny's character and experiences. Throughout the novel, Denny faces various obstacles, including personal struggles and family issues. His dedication to his career and his relationships highlights themes of perseverance and loyalty, making him a relatable and inspiring figure for readers.