was the 14th daimyà  of Fukui Domain under the Edo period Tokugawa shogunate in Echizen Province.
Naritsugu was born in Fukui as the third son of Matsudaira Haruyoshi. Naritsugu's mother was of lowly origins, she was taken care of by the later ruler Matsudaira Shungaku who described her as a 'teahouse girl'. His childhood name was Jinosuke (ä»Âä¹Âå©). In 1817, he was engaged to Asahime, a daughter of Shà Âgun Tokugawa Ienari, and the couple was formally married in 1819.
He underwent his genpuku ceremony in 1824 and received a kanji from Tokugawa IenariâÂÂs name to become Matsudaira Naritsugu. At that time, his courtesy title was Iyo-no-kami and his court rank was Junior Fourth Rank, Upper Grade.
His father died in 1825 and he formally became daimyà  of Fukui early the following year. His courtesy title became Echizen-no-kami and also Sakon'e-no-shà Âjà Â
Early in his tenure (from 1827) he ordered a five-year fiscal austerity plan in an attempt to rebuild the domainâÂÂs finances, and from 1829 he ordered that the domainâÂÂs retainers be reduced to half the present number over the next seven years. However, in stark contrast to these efforts, he maintained the luxurious lifestyle of his father and grandfather, and spared no expense when he rebuilt the palace within the grounds of Fukui Castle. The domain was also hit hard by increasing rice prices, and a major smallpox epidemic.
Naritsugu also attempted to convince the Shà Âgun to allow him to trade territories with Hikone Domain under the control of the Ii clan; however, he died in 1835 at the domainâÂÂs Edo residence at the age of 25, possibly due to illness, before a decision was reached. This was one of the causes of the ill-will between the Tairà  Ii Naosuke and future daimyà  of Fukui, especially Matsudaira Shungaku.
At the time of his death, Naritsugu had not yet produced an heir. A younger son of Tokugawa Ienari, and thus a brother of Asahime, was chosen as successor.