肥前國
was a Japanese "daimyō" of the early Edo period, who ruled the Hasunoike Domain in Hizen Province (modern-day Saga Prefecture). He was the son of Nabeshima Katsushige, and was a viable candidate for succession to the lordship of the Saga Domain upon the death of his brother Tadanao (Naozumi married Tadanao's widow); however, this plan was unsuccessful. Naozumi was instead granted 52,000 "koku" in Hizen Province, and became the first "daimyō" of Hasunoike.