Rüdiger is a common male given name in Germany and other German-speaking countries. It has Old High German origins, meaning "famous spear." The name has been used for centuries and is often associated with strength and bravery. In popular culture, Rüdiger may refer to various fictional characters, such as Rüdiger von Schlotterstein from the children's book series Rüdiger, the Vampire. This character is depicted as a friendly vampire who befriends a human boy, showcasing themes of friendship and acceptance.