Kato is a given name of Japanese origin, often used for boys. In Japanese, the name can mean "increase" or "wisteria," depending on the kanji characters used. It is a relatively common name in Japan and can also be found in other cultures, sometimes as a surname. In addition to its use as a first name, Kato is associated with various notable figures, including Kato Kaelin, an American television personality. The name is also linked to the character Kato in the Green Hornet series, who is known as the sidekick of the titular superhero.