Wilhelm is a common German name, often associated with historical figures such as Wilhelm I, the first German Emperor, who reigned from 1871 to 1888. The name has roots in Old High German, meaning "resolute protector." It has been used by various kings and princes throughout European history. In addition to its historical significance, the name Wilhelm has appeared in literature and popular culture. For example, Wilhelm scream is a famous sound effect used in many films. The name continues to be popular in Germany and other German-speaking countries today.