In *The Hitchhiker's Guide to the Galaxy*, the Vogons are a bureaucratic, oppressive alien race known primarily for their incompetence and lack of imagination. Their governance structure is quite hierarchical and bureaucratic, heavily reliant on rigid systems and paperwork. However, it is not detailed in a way that suggests a strong, central leader with a clear title like "President" or "King."
The Vogons are more about their bureaucratic systems than any personal leadership. The most well-known figure in Vogon governance is Prostetnic Vogon Jeltz, who is a captain in the Vogon fleet. He is responsible for the Destruction of Earth in the story. While he can be seen as a leader in his specific domain, his power is limited by the bureaucratic nature of Vogon society, and his role seems more like a middle-manager than an absolute ruler.
So, while the Vogons have leaders like Jeltz, their true "leader" is unclear, as their system is focused more on laws, rules, and paperwork rather than individual leadership. The bureaucracy itself is the true ruler, and any leader, like Jeltz, is just a cog in the machine.
# See - Vogon Structure - Vogon Names