Mr. Tiger is a fictional character from the children's book titled "Mr. Tiger Goes Wild," written and illustrated by Peter Brown. He is depicted as a tiger who becomes tired of the constraints of civilized life and yearns for freedom and adventure. In the story, Mr. Tiger decides to embrace his wild side, shedding his formal attire and exploring the wilderness. His journey encourages readers to celebrate individuality and the importance of being true to oneself, making it a popular choice for young audiences and parents alike.