Hosato Sulu was a male Human of Asian descent who lived in the 23rd century. A well-known poet who authored the collections Fire in Frost and Nine Suns, Hosato was also noted as the father of Hikaru Sulu and the husband of Shimizu Hana. Hosato Sulu lived with his family on the frontier colony world of Ganjitsu. (TOS reference: Who's Who in Star Trek, TOS novels: Enterprise: The First Adventure, The Entropy Effect, Star Trek V: The Final Frontier)

In 2248, he was saved from the Albino's orbital bombardment of Ishikawa village by an eleven year old Hikaru Sulu. (novel: Excelsior: Forged in Fire)