Guy is a common male name that originates from the Old French name Guillaume, which means "resolute protector." It is widely used in English-speaking countries and can also refer to a man or a person in a casual context. The name has various cultural associations, including its use in literature and media. In popular culture, "Guy" can refer to characters in movies, television shows, or books. For example, Guy Fawkes is a historical figure known for his role in the Gunpowder Plot, while Guy Ritchie is a well-known British filmmaker. The term is often used informally to address friends or acquaintances.