Katsuji is a Japanese given name of Shinto origin, composed of "Katsu" meaning victory and "Jī" meaning first or beginning, translating to "the first victory." It was often used as a courtesy name during the Heian period (794-1185), suggesting its bearer would achieve great success. Notable figures like Katsuji Shibata, a prominent haiku poet of the Edo period (1603-1868), have carried this name throughout history. Today, it remains popular among Japanese families for its powerful meaning and rich historical significance.