Itō Sukeyoshi served as a bushō and sengoku daimyō during the Sengoku period.  He was the tenth head of the Itō clan of Hyūga Province.

In 1517, Sukeyoshi was born as the son of Itō Tadasuke, the eighth head of the Hyūga-Itō.

In 1533, after the death of his older brother, Itō Sukemitsu, his uncle, Itō Suketake, revolted and forced Sukemitsu’s chief retainer, Fukunaga Sukeaki, and his three sons (maternal relatives of the Itō) to take their own lives.  This event is known as the Bushū Rebellion.  Sukeyoshi, together with his older brother, Itō Sukekiyo (later known as Yoshisuke), backed by Aratake Sansei, suppressed the rebellion.  Later, after Sansei was killed in an uprising led by the Mera clan, Sukeyoshi garnered support from Nagakura Sukeyoshi and other senior retainers who despised Sukekiyo, whereupon he became the next head of the clan.

From his base at Miyazaki Castle, Sukeyoshi repelled an attack by the Agata-Uchimochi clan who sought to take advantage of internal discord in the Itō clan. 

In 1536, he died of illness at the age of twenty.