Viscount Matsudaira Nobunori (松平 喜徳, December 1, 1855 – June 3, 1891) was a Japanese samurai of the Bakumatsu period and the 10th (and final) daimyō of Aizu Domain.

he was initially named Akinori (昭則), bout received a kanji from his older brother, Shogun Tokugawa Yoshinobu to become "Nobunori".

In November 1869, the chieftainship of the Aizu-Matsudaira clan was transferred to Katamori's infant son, Kataharu Matsudaira.

In March 1870, Katamori and Nobunori were ordered to accompany the Aizu samurai to their new home of Tanami Domain in far northern Aomori Prefecture.

In August 1873, Matsudaira Moriyuki, the 22nd son of Tokugawa Nariaki, former daimyō of Moriyama Domain and imperial governor of Matsukawa, died.