Iha Fuyu (?? ??, March 15, 1876 – August 13, 1947) was the father of Okinawaology and a Japanese scholar who studied various aspects of Japanese and Okinawan culture, customs, linguistics, and lore.
His signature was Ifa Fuyu in English, because of the Okinawan pronunciation.
Iha studied linguistics in the University of Tokyo and was devoted to the study of Okinawan linguistics, folklore, and history.
His most famous book on the subject, Ko Ryukyu (Old Ryukyu), was published in 1911 and remains one of the best works on Okinawan studies.
He devoted much time to the discovery of the origins of Okinawan people to establish their history.
He had considerable influence not only on the study of Okinawan folklore but also of Japanese folklore.