Matsudaira Shigemasa (松平 重昌, 9 October 1743 – 25 April 1758) was the 11th daimyō of Fukui Domain under the Edo period Tokugawa shogunate.
In 1747, on the order of his uncle, Shōgun Tokugawa Ieshige, he became the adopted son and heir of Matsudaira Munenori of Fukui Domain.
Due to his youth, he played little role in domain affairs, which were handled by his senior retainers.
The tenryō territories previously administered by the domain reverted to direct shogunal control, resulting in a severe loss of revenue.
Although betrothed to the sixth daughter of Tokugawa Munekatsu of Owari Domain, Shigemasa died in 1758 before his marriage and without heir.