Date Narimune (伊達斉宗, DAH-tay; 15 October 1796 – 15 July 1819) was a mid-Edo period Japanese samurai, and the tenth daimyō of Sendai Domain in the Tōhoku region of northern Japan, and the 26th hereditary chieftain of the Date clan.

Narimune was the posthumous second son of Date Narimura; his mother was a concubine and he was born at the clan's Sodegasaki residence in Edo.

In 1809, his elder half-brother, Date Chikamune was highly disfigured by smallpox, and went into seclusion until his death in 1812.

Later that same year, after Chikamune died, he was received in formal audience by Shōgun Tokugawa Ienari, who presided over his genpuku ceremony, and who granted him a kanji from his name.

He also received the Court rank of Junior Fourth, Lower Grade and courtesy titles of Mutsu-no-kami and Sakonoe-shōshō as had been held by his father.