Galvans (a play on galvanization) are from the planet Galvan Prime. Despite being tiny compared to other planets, Galvan Prime is one of the most scientifically advanced worlds in the galaxy and home to one of the most powerful empires in existence. Industrialization has swept over the planet, practically eliminating any trace of nature. The Galvans originally had no empire to speak of, instead being kept as pets by other races. They were then employed by other species as industrial technicians, spies, and saboteurs once their intelligence became known. The Galvans were smart enough to keep the best technology for themselves, eventually founding a powerful empire based on the technology they had kept from the rest of the galaxy. The inhabitants of Galvan Prime work tirelessly and consume massive amounts of resources to remain a superior force in the galaxy. Being from a tiny world, Galvans are equally tiny, being only five inches tall on average. Their bodies consist of soft and flexible bones, allowing them to squeeze into tight spaces or quickly escape from danger. With the microscopic pads that cover their bodies, Galvans can stick to almost surface. Their slime makes them equally difficult to grab. Not built for combat, Galvans evade and outsmart their enemies, rather than fight them head on. Male Glavans do not have hair, while female Galvans do, this would explain why Grey Matter doesn't have hair and why Gwen's version of Grey Matter has hair. It is unknown why Azmuth, a male Galvan, has facial hair. They are raised to be extremely intelligent, and bred to enter complex machines and operate them from the inside. This allows them to understand and operate virtually any machine, even if they've never seen it before. Despite their advanced science, Galvans are easily trampled because of their small size. During the Ben 10 Week, it was revealed that Galvans are the smartest species.

List of notable Galvans

• Grey Matter
• Grey Matter (Ken Tennyson Version)
• Gwen Matter
• Azmuth
• Albedo Ben
• Galvan Gods
• Other Galvans