Nanbu Toshitaka (南部利敬, 4 November 1782 – 12 July 1820) was a mid-Edo period Japanese samurai, and the 10th daimyō of Morioka Domain in northern Japan.

[1] As he was only two years old at the time, there were concerns that the Tokugawa shogunate would use this as an excuse to dissolve Morioka Domain, so his official birthdate was changed from 1782 to 1779.

He was not received in formal audience by shōgun Tokugawa Ienari until 15 February 1795, and first entered his domains on 13 April of the same year.

On 18 December 1818, he was promoted to the honorary title of Jijū (Chamberlain), and Morioka Domain was assigned an area in southern Ezo to police on behalf of the Shogunate.

[1] The same year, Toshitaka promulgated a reformed version of the domain's internal laws.